complete std prefixes for stdlib (#22887)

follow up https://github.com/nim-lang/Nim/pull/22851
follow up https://github.com/nim-lang/Nim/pull/22873

doc/astspec.txt

@@ -893,7 +893,7 @@ on what keywords are present. Let's start with the simplest form.
 Concrete syntax:
 
   ```nim
-  import math
+  import std/math
   ```
 
 AST:
@@ -907,7 +907,7 @@ With ``except``, we get ``nnkImportExceptStmt``.
 Concrete syntax:
 
   ```nim
-  import math except pow
+  import std/math except pow
   ```
 
 AST:
@@ -916,13 +916,13 @@ AST:
   nnkImportExceptStmt(nnkIdent("math"),nnkIdent("pow"))
   ```
 
-Note that ``import math as m`` does not use a different node; rather,
+Note that ``import std/math as m`` does not use a different node; rather,
 we use ``nnkImportStmt`` with ``as`` as an infix operator.
 
 Concrete syntax:
 
   ```nim
-  import strutils as su
+  import std/strutils as su
   ```
 
 AST:
@@ -945,7 +945,7 @@ If we use ``from ... import``, the result is different, too.
 Concrete syntax:
 
   ```nim
-  from math import pow
+  from std/math import pow
   ```
 
 AST:
@@ -954,7 +954,7 @@ AST:
   nnkFromStmt(nnkIdent("math"), nnkIdent("pow"))
   ```
 
-Using ``from math as m import pow`` works identically to the ``as`` modifier
+Using ``from std/math as m import pow`` works identically to the ``as`` modifier
 with the ``import`` statement, but wrapped in ``nnkFromStmt``.
 
 Export statement

doc/docgen_sample.nim

@@ -1,6 +1,6 @@
 ## This module is a sample.
 
-import strutils
+import std/strutils
 
 proc helloWorld*(times: int) =
   ## Takes an integer and outputs

doc/estp.md

@@ -28,7 +28,7 @@ Otherwise your program is profiled.
 
 ```nim
 when compileOption("profiler"):
-  import nimprof
+  import std/nimprof
 ```
 
 After your program has finished the profiler will create a

doc/manual.md

@@ -655,7 +655,7 @@ string containing the literal. The callable identifier needs to be declared
 with a special ``'`` prefix:
 
   ```nim
-  import strutils
+  import std/strutils
   type u4 = distinct uint8 # a 4-bit unsigned integer aka "nibble"
   proc `'u4`(n: string): u4 =
     # The leading ' is required.
@@ -670,7 +670,7 @@ corresponds to this transformation. The transformation naturally handles
 the case that additional parameters are passed to the callee:
 
   ```nim
-  import strutils
+  import std/strutils
   type u4 = distinct uint8 # a 4-bit unsigned integer aka "nibble"
   proc `'u4`(n: string; moreData: int): u4 =
     result = (parseInt(n) and 0x0F).u4
@@ -5231,7 +5231,7 @@ conservative in its effect analysis:
   ```nim  test = "nim c $1"  status = 1
   {.push warningAsError[Effect]: on.}
 
-  import algorithm
+  import std/algorithm
 
   type
     MyInt = distinct int

doc/manual_experimental.md

@@ -1368,7 +1368,7 @@ to be computed dynamically.
   ```nim
   {.experimental: "dynamicBindSym".}
 
-  import macros
+  import std/macros
 
   macro callOp(opName, arg1, arg2): untyped =
     result = newCall(bindSym($opName), arg1, arg2)

lib/core/hotcodereloading.nim

@@ -11,7 +11,7 @@
 
 when defined(hotcodereloading):
   import
-    macros
+    std/macros
 
   template beforeCodeReload*(body: untyped) =
     hcrAddEventHandler(true, proc = body) {.executeOnReload.}

lib/deprecated/pure/future.nim

@@ -2,5 +2,5 @@
 
 {.deprecated: "Use the new 'sugar' module instead".}
 
-import sugar
+import std/sugar
 export sugar

lib/deprecated/pure/ospaths.nim

@@ -11,7 +11,7 @@
 
 {.deprecated: "use `std/os` instead".}
 
-import os
+import std/os
 export ReadEnvEffect, WriteEnvEffect, ReadDirEffect, WriteDirEffect, OSErrorCode,
   doslikeFileSystem, CurDir, ParDir, DirSep, AltSep, PathSep, FileSystemCaseSensitive,
   ExeExt, ScriptExt, DynlibFormat, ExtSep, joinPath, `/`, splitPath, parentDir,

lib/deprecated/pure/oswalkdir.nim

@@ -7,7 +7,7 @@
 #    distribution, for details about the copyright.
 #
 
-## This module is deprecated, `import os` instead.
-{.deprecated: "import os.nim instead".}
-import os
+## This module is deprecated, `import std/os` instead.
+{.deprecated: "import 'std/os' instead".}
+import std/os
 export PathComponent, walkDir, walkDirRec

lib/experimental/diff.nim

@@ -43,7 +43,7 @@ jkl"""
 # "An O(ND) Difference Algorithm and its Variations" by Eugene Myers
 # Algorithmica Vol. 1 No. 2, 1986, p 251.
 
-import tables, strutils
+import std/[tables, strutils]
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/impure/nre.nim

@@ -61,12 +61,12 @@ runnableExamples:
   assert find("uxabc", re"(?<=x|y)ab", start = 1).get.captures[-1] == "ab"
   assert find("uxabc", re"ab", start = 3).isNone
 
-from pcre import nil
+from std/pcre import nil
 import nre/private/util
-import tables
-from strutils import `%`
-import options
-from unicode import runeLenAt
+import std/tables
+from std/strutils import `%`
+import std/options
+from std/unicode import runeLenAt
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/impure/nre/private/util.nim

@@ -1,5 +1,5 @@
 ## INTERNAL FILE FOR USE ONLY BY nre.nim.
-import tables
+import std/tables
 
 const Ident = {'a'..'z', 'A'..'Z', '0'..'9', '_', '\128'..'\255'}
 const StartIdent = Ident - {'0'..'9'}

lib/impure/rdstdin.nim

@@ -55,7 +55,7 @@ elif defined(genode):
     stdin.readLine(line)
 
 else:
-  import linenoise
+  import std/linenoise
 
   proc readLineFromStdin*(prompt: string, line: var string): bool {.
                           tags: [ReadIOEffect, WriteIOEffect].} =

lib/impure/re.nim

@@ -36,7 +36,7 @@ runnableExamples:
     # can't match start of string since we're starting at 1
 
 import
-  pcre, strutils, rtarrays
+  std/[pcre, strutils, rtarrays]
 
 when defined(nimPreviewSlimSystem):
   import std/syncio

lib/nimhcr.nim

@@ -219,7 +219,7 @@ when defined(createNimHcr):
   when system.appType != "lib":
     {.error: "This file has to be compiled as a library!".}
 
-  import os, tables, sets, times, strutils, reservedmem, dynlib
+  import std/[os, tables, sets, times, strutils, reservedmem, dynlib]
 
   template trace(args: varargs[untyped]) =
     when defined(testNimHcr) or defined(traceHcr):

lib/nimrtl.nim

@@ -36,5 +36,5 @@ when not defined(createNimRtl):
   {.error: "This file has to be compiled with '-d:createNimRtl'".}
 
 import
-  parseutils, strutils, parseopt, parsecfg, strtabs, unicode, pegs, ropes,
-  os, osproc, times, cstrutils
+  std/[parseutils, strutils, parseopt, parsecfg, strtabs, unicode, pegs, ropes,
+  os, osproc, times, cstrutils]

lib/packages/docutils/dochelpers.nim

@@ -13,7 +13,8 @@
 ## `type LangSymbol`_ in ``rst.nim``, while `match(generated, docLink)`_
 ## matches it with `generated`, produced from `PNode` by ``docgen.rst``.
 
-import rstast, strutils
+import rstast
+import std/strutils
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, syncio]

lib/packages/docutils/highlite.nim

@@ -57,8 +57,8 @@
 ## as program output.
 
 import
-  strutils
-from algorithm import binarySearch
+  std/strutils
+from std/algorithm import binarySearch
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, syncio]

lib/packages/docutils/rst.nim

@@ -21,8 +21,10 @@
 ## turned on by passing ``options:`` [RstParseOptions] to [proc rstParse].
 
 import
-  os, strutils, rstast, dochelpers, std/enumutils, algorithm, lists, sequtils,
-  std/private/miscdollars, tables, strscans, rstidx
+  std/[os, strutils, enumutils, algorithm, lists, sequtils,
+  tables, strscans]
+import dochelpers, rstidx, rstast
+import std/private/miscdollars
 from highlite import SourceLanguage, getSourceLanguage
 
 when defined(nimPreviewSlimSystem):

lib/packages/docutils/rstast.nim

@@ -9,7 +9,7 @@
 
 ## This module implements an AST for the `reStructuredText`:idx: parser.
 
-import strutils, json
+import std/[strutils, json]
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/packages/docutils/rstgen.nim

@@ -39,10 +39,10 @@
 ##   No backreferences are generated since finding all references of a footnote
 ##   can be done by simply searching for ``[footnoteName]``.
 
-import strutils, os, hashes, strtabs, rstast, rst, rstidx,
-  highlite, tables, sequtils,
-  algorithm, parseutils, std/strbasics
+import std/[strutils, os, hashes, strtabs, tables, sequtils,
+  algorithm, parseutils, strbasics]
 
+import rstast, rst, rstidx, highlite
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, syncio, formatfloat]

lib/packages/docutils/rstidx.nim

@@ -7,8 +7,8 @@
 
 ## Nim `idx`:idx: file format related definitions.
 
-import strutils, std/syncio, hashes
-from os import splitFile
+import std/[strutils, syncio, hashes]
+from std/os import splitFile
 
 type
   IndexEntryKind* = enum ## discriminator tag

lib/posix/epoll.nim

@@ -7,7 +7,7 @@
 #    distribution, for details about the copyright.
 #
 
-from posix import SocketHandle
+from std/posix import SocketHandle
 
 const
   EPOLLIN* = 0x00000001

lib/posix/kqueue.nim

@@ -7,7 +7,7 @@
 #    distribution, for details about the copyright.
 #
 
-from posix import Timespec
+from std/posix import Timespec
 
 when defined(macosx) or defined(freebsd) or defined(openbsd) or
      defined(dragonfly):

lib/posix/linux.nim

@@ -1,4 +1,4 @@
-import posix
+import std/posix
 
 ## Flags of `clone` syscall.
 ## See `clone syscall manual

lib/posix/posix_utils.nim

@@ -11,7 +11,7 @@
 
 # Where possible, contribute OS-independent procs in `os <os.html>`_ instead.
 
-import posix, parsecfg, os
+import std/[posix, parsecfg, os]
 import std/private/since
 
 when defined(nimPreviewSlimSystem):

lib/posix/termios.nim

@@ -7,7 +7,7 @@
 #    distribution, for details about the copyright.
 #
 
-import posix
+import std/posix
 
 type
   Speed* = cuint

lib/pure/async.nim

@@ -2,8 +2,8 @@
 ## and [asyncjs](asyncjs.html) on the JS backend. 
 
 when defined(js):
-  import asyncjs
+  import std/asyncjs
   export asyncjs
 else:
-  import asyncmacro, asyncfutures
+  import std/[asyncmacro, asyncfutures]
   export asyncmacro, asyncfutures

lib/pure/asyncdispatch.nim

@@ -226,11 +226,11 @@
 ## ``none`` can be used when a library supports both a synchronous and
 ## asynchronous API, to disable the latter.
 
-import os, tables, strutils, times, heapqueue, options, asyncstreams
-import options, math, std/monotimes
-import asyncfutures except callSoon
+import std/[os, tables, strutils, times, heapqueue, options, asyncstreams]
+import std/[math, monotimes]
+import std/asyncfutures except callSoon
 
-import nativesockets, net, deques
+import std/[nativesockets, net, deques]
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, syncio]
@@ -302,7 +302,7 @@ template implementSetInheritable() {.dirty.} =
       fd.FileHandle.setInheritable(inheritable)
 
 when defined(windows) or defined(nimdoc):
-  import winlean, sets, hashes
+  import std/[winlean, sets, hashes]
   type
     CompletionKey = ULONG_PTR
 
@@ -1166,11 +1166,11 @@ when defined(windows) or defined(nimdoc):
 
   initAll()
 else:
-  import selectors
-  from posix import EINTR, EAGAIN, EINPROGRESS, EWOULDBLOCK, MSG_PEEK,
+  import std/selectors
+  from std/posix import EINTR, EAGAIN, EINPROGRESS, EWOULDBLOCK, MSG_PEEK,
                     MSG_NOSIGNAL
   when declared(posix.accept4):
-    from posix import accept4, SOCK_CLOEXEC
+    from std/posix import accept4, SOCK_CLOEXEC
   when defined(genode):
     import genode/env # get the implicit Genode env
     import genode/signals
@@ -1994,7 +1994,7 @@ proc send*(socket: AsyncFD, data: string,
   return retFuture
 
 # -- Await Macro
-import asyncmacro
+import std/asyncmacro
 export asyncmacro
 
 proc readAll*(future: FutureStream[string]): owned(Future[string]) {.async.} =
@@ -2032,7 +2032,7 @@ proc activeDescriptors*(): int {.inline.} =
     result = getGlobalDispatcher().selector.count
 
 when defined(posix):
-  import posix
+  import std/posix
 
 when defined(linux) or defined(windows) or defined(macosx) or defined(bsd) or
        defined(solaris) or defined(zephyr) or defined(freertos) or defined(nuttx) or defined(haiku):

lib/pure/asyncfile.nim

@@ -23,7 +23,7 @@
 ##   waitFor main()
 ##   ```
 
-import asyncdispatch, os
+import std/[asyncdispatch, os]
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, syncio]
@@ -33,9 +33,9 @@ when defined(nimPreviewSlimSystem):
 # TODO: Fix duplication introduced by PR #4683.
 
 when defined(windows) or defined(nimdoc):
-  import winlean
+  import std/winlean
 else:
-  import posix
+  import std/posix
 
 type
   AsyncFile* = ref object

lib/pure/asyncfutures.nim

@@ -7,7 +7,7 @@
 #    distribution, for details about the copyright.
 #
 
-import os, tables, strutils, times, heapqueue, options, deques, cstrutils
+import std/[os, tables, strutils, times, heapqueue, options, deques, cstrutils]
 
 import system/stacktraces
 
@@ -51,7 +51,7 @@ const
   NimAsyncContinueSuffix* = "NimAsyncContinue" ## For internal usage. Do not use.
 
 when isFutureLoggingEnabled:
-  import hashes
+  import std/hashes
   type
     FutureInfo* = object
       stackTrace*: seq[StackTraceEntry]

lib/pure/asynchttpserver.nim

@@ -39,9 +39,9 @@ runnableExamples("-r:off"):
 
   waitFor main()
 
-import asyncnet, asyncdispatch, parseutils, uri, strutils
-import httpcore
-from nativesockets import getLocalAddr, Domain, AF_INET, AF_INET6
+import std/[asyncnet, asyncdispatch, parseutils, uri, strutils]
+import std/httpcore
+from std/nativesockets import getLocalAddr, Domain, AF_INET, AF_INET6
 import std/private/since
 
 when defined(nimPreviewSlimSystem):

lib/pure/asyncmacro.nim

@@ -9,7 +9,7 @@
 
 ## Implements the `async` and `multisync` macros for `asyncdispatch`.
 
-import macros, strutils, asyncfutures
+import std/[macros, strutils, asyncfutures]
 
 type
   Context = ref object

lib/pure/asyncnet.nim

@@ -99,7 +99,7 @@ import std/private/since
 when defined(nimPreviewSlimSystem):
   import std/[assertions, syncio]
 
-import asyncdispatch, nativesockets, net, os
+import std/[asyncdispatch, nativesockets, net, os]
 
 export SOBool
 
@@ -110,7 +110,7 @@ const useNimNetLite = defined(nimNetLite) or defined(freertos) or defined(zephyr
     defined(nuttx)
 
 when defineSsl:
-  import openssl
+  import std/openssl
 
 type
   # TODO: I would prefer to just do:

lib/pure/asyncstreams.nim

@@ -9,12 +9,12 @@
 
 ## Unstable API.
 
-import asyncfutures
+import std/asyncfutures
 
 when defined(nimPreviewSlimSystem):
   import std/assertions
 
-import deques
+import std/deques
 
 type
   FutureStream*[T] = ref object ## Special future that acts as

lib/pure/bitops.nim

@@ -25,7 +25,7 @@
 ## At this time only `fastLog2`, `firstSetBit`, `countLeadingZeroBits` and `countTrailingZeroBits`
 ## may return undefined and/or platform dependent values if given invalid input.
 
-import macros
+import std/macros
 import std/private/since
 from std/private/bitops_utils import forwardImpl, castToUnsigned
 

lib/pure/browsers.nim

@@ -14,20 +14,20 @@
 
 import std/private/since
 
-import strutils
+import std/strutils
 
 when defined(nimPreviewSlimSystem):
   import std/assertions
 
 when defined(windows):
-  import winlean
+  import std/winlean
   when defined(nimPreviewSlimSystem):
     import std/widestrs
-  from os import absolutePath
+  from std/os import absolutePath
 else:
-  import os
+  import std/os
   when not defined(osx):
-    import osproc
+    import std/osproc
 
 const osOpenCmd* =
   when defined(macos) or defined(macosx) or defined(windows): "open" else: "xdg-open" ## \

lib/pure/cgi.nim

@@ -29,7 +29,7 @@
 ##   writeLine(stdout, "</body></html>")
 ##   ```
 
-import strutils, os, strtabs, cookies, uri
+import std/[strutils, os, strtabs, cookies, uri]
 export uri.encodeUrl, uri.decodeUrl
 
 when defined(nimPreviewSlimSystem):

lib/pure/collections/deques.nim

@@ -50,7 +50,7 @@ runnableExamples:
 
 import std/private/since
 
-import math
+import std/math
 
 type
   Deque*[T] = object

lib/pure/collections/sequtils.nim

@@ -82,8 +82,8 @@ runnableExamples:
 
 import std/private/since
 
-import macros
-from typetraits import supportsCopyMem
+import std/macros
+from std/typetraits import supportsCopyMem
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/pure/collections/sets.nim

@@ -50,7 +50,7 @@
 
 
 import
-  hashes, math
+  std/[hashes, math]
 
 when not defined(nimHasEffectsOf):
   {.pragma: effectsOf.}

lib/pure/collections/sharedlist.nim

@@ -16,7 +16,7 @@
 {.push stackTrace: off.}
 
 import
-  locks
+  std/locks
 
 const
   ElemsPerNode = 100

lib/pure/collections/sharedtables.nim

@@ -17,7 +17,7 @@
 {.deprecated.}
 
 import
-  hashes, math, locks
+  std/[hashes, math, locks]
 
 type
   KeyValuePair[A, B] = tuple[hcode: Hash, key: A, val: B]

lib/pure/collections/tables.nim

@@ -194,7 +194,7 @@ runnableExamples:
 
 
 import std/private/since
-import hashes, math, algorithm
+import std/[hashes, math, algorithm]
 
 
 when not defined(nimHasEffectsOf):

lib/pure/colors.nim

@@ -9,8 +9,8 @@
 ## This module implements color handling for Nim,
 ## namely color mixing and parsing the CSS color names.
 
-import strutils
-from algorithm import binarySearch
+import std/strutils
+from std/algorithm import binarySearch
 
 type
   Color* = distinct int ## A color stored as RGB, e.g. `0xff00cc`.

lib/pure/complex.nim

@@ -36,7 +36,7 @@ runnableExamples:
 {.push checks: off, line_dir: off, stack_trace: off, debugger: off.}
 # the user does not want to trace a part of the standard library!
 
-import math
+import std/math
 
 type
   Complex*[T: SomeFloat] = object

lib/pure/concurrency/cpuinfo.nim

@@ -16,7 +16,7 @@ runnableExamples:
 include "system/inclrtl"
 
 when defined(posix) and not (defined(macosx) or defined(bsd)):
-  import posix
+  import std/posix
 
 when defined(windows):
   import std/private/win_getsysteminfo

lib/pure/concurrency/cpuload.nim

@@ -13,11 +13,11 @@
 ## Unstable API.
 
 when defined(windows):
-  import winlean, os, strutils, math
+  import std/[winlean, os, strutils, math]
 
   proc `-`(a, b: FILETIME): int64 = a.rdFileTime - b.rdFileTime
 elif defined(linux):
-  from cpuinfo import countProcessors
+  from std/cpuinfo import countProcessors
 
 when defined(nimPreviewSlimSystem):
   import std/syncio
@@ -87,7 +87,7 @@ proc advice*(s: var ThreadPoolState): ThreadPoolAdvice =
   inc s.calls
 
 when not defined(testing) and isMainModule and not defined(nimdoc):
-  import random
+  import std/random
 
   proc busyLoop() =
     while true:

lib/pure/concurrency/threadpool.nim

@@ -22,7 +22,7 @@
 when not compileOption("threads"):
   {.error: "Threadpool requires --threads:on option.".}
 
-import cpuinfo, cpuload, locks, os
+import std/[cpuinfo, cpuload, locks, os]
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, typedthreads, sysatomics]

lib/pure/cookies.nim

@@ -9,7 +9,7 @@
 
 ## This module implements helper procs for parsing Cookies.
 
-import strtabs, times, options
+import std/[strtabs, times, options]
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/pure/coro.nim

@@ -29,8 +29,7 @@ when not nimCoroutines and not defined(nimdoc):
   else:
     {.error: "Coroutines require -d:nimCoroutines".}
 
-import os
-import lists
+import std/[os, lists]
 include system/timers
 
 when defined(nimPreviewSlimSystem):
@@ -68,7 +67,7 @@ else:
   const coroBackend = CORO_BACKEND_UCONTEXT
 
 when coroBackend == CORO_BACKEND_FIBERS:
-  import windows/winlean
+  import std/winlean
   type
     Context = pointer
 

lib/pure/dynlib.nim

@@ -105,7 +105,7 @@ when defined(posix) and not defined(nintendoswitch):
   # as an emulation layer on top of native functions.
   # =========================================================================
   #
-  import posix
+  import std/posix
 
   proc loadLib(path: string, globalSymbols = false): LibHandle =
     let flags =

lib/pure/encodings.nim

@@ -39,7 +39,7 @@ runnableExamples:
     assert fromGB2312.convert(second) == "有白头如新，倾盖如故"
 
 
-import os
+import std/os
 when defined(nimPreviewSlimSystem):
   import std/assertions
 
@@ -59,7 +59,7 @@ type
                                         ## for encoding errors.
 
 when defined(windows):
-  import parseutils, strutils
+  import std/[parseutils, strutils]
   proc eqEncodingNames(a, b: string): bool =
     var i = 0
     var j = 0

lib/pure/htmlgen.nim

@@ -8,7 +8,7 @@
 #
 
 ## Do yourself a favor and import the module
-## as `from htmlgen import nil` and then fully qualify the macros.
+## as `from std/htmlgen import nil` and then fully qualify the macros.
 ##
 ## *Note*: The Karax project (`nimble install karax`) has a better
 ## way to achieve the same, see https://github.com/pragmagic/karax/blob/master/tests/nativehtmlgen.nim
@@ -41,7 +41,7 @@
 ##
 
 import
-  macros, strutils
+  std/[macros, strutils]
 
 const
   coreAttr* = " accesskey class contenteditable dir hidden id lang " &

lib/pure/htmlparser.nim

@@ -49,7 +49,7 @@
 
 {.deprecated: "use `nimble install htmlparser` and import `pkg/htmlparser` instead".}
 
-import strutils, streams, parsexml, xmltree, unicode, strtabs
+import std/[strutils, streams, parsexml, xmltree, unicode, strtabs]
 
 when defined(nimPreviewSlimSystem):
   import std/syncio
@@ -2064,7 +2064,7 @@ proc loadHtml*(path: string): XmlNode =
   result = loadHtml(path, errors)
 
 when not defined(testing) and isMainModule:
-  import os
+  import std/os
 
   var errors: seq[string] = @[]
   var x = loadHtml(paramStr(1), errors)

lib/pure/httpcore.nim

@@ -12,7 +12,7 @@
 ##
 ## Unstable API.
 import std/private/since
-import tables, strutils, parseutils
+import std/[tables, strutils, parseutils]
 
 type
   HttpHeaders* = ref object

lib/pure/ioselects/ioselectors_epoll.nim

@@ -9,7 +9,7 @@
 
 # This module implements Linux epoll().
 
-import posix, times, epoll
+import std/[posix, times, epoll]
 
 # Maximum number of events that can be returned
 const MAX_EPOLL_EVENTS = 64

lib/pure/ioselects/ioselectors_kqueue.nim

@@ -9,7 +9,7 @@
 
 #  This module implements BSD kqueue().
 
-import posix, times, kqueue, nativesockets
+import std/[posix, times, kqueue, nativesockets]
 
 const
   # Maximum number of events that can be returned.

lib/pure/ioselects/ioselectors_poll.nim

@@ -9,7 +9,7 @@
 
 # This module implements Posix poll().
 
-import posix, times
+import std/[posix, times]
 
 # Maximum number of events that can be returned
 const MAX_POLL_EVENTS = 64

lib/pure/ioselects/ioselectors_select.nim

@@ -9,10 +9,10 @@
 
 # This module implements Posix and Windows select().
 
-import times, nativesockets
+import std/[times, nativesockets]
 
 when defined(windows):
-  import winlean
+  import std/winlean
   when defined(gcc):
     {.passl: "-lws2_32".}
   elif defined(vcc):

lib/pure/json.nim

@@ -165,9 +165,9 @@ runnableExamples:
     a1, a2, a0, a3, a4: int
   doAssert $(%* Foo()) == """{"a1":0,"a2":0,"a0":0,"a3":0,"a4":0}"""
 
-import hashes, tables, strutils, lexbase, streams, macros, parsejson
+import std/[hashes, tables, strutils, lexbase, streams, macros, parsejson]
 
-import options # xxx remove this dependency using same approach as https://github.com/nim-lang/Nim/pull/14563
+import std/options # xxx remove this dependency using same approach as https://github.com/nim-lang/Nim/pull/14563
 import std/private/since
 
 when defined(nimPreviewSlimSystem):
@@ -549,7 +549,7 @@ proc `[]`*[U, V](a: JsonNode, x: HSlice[U, V]): JsonNode =
   ##
   ## Returns the inclusive range `[a[x.a], a[x.b]]`:
   runnableExamples:
-    import json
+    import std/json
     let arr = %[0,1,2,3,4,5]
     doAssert arr[2..4] == %[2,3,4]
     doAssert arr[2..^2] == %[2,3,4]
@@ -965,7 +965,7 @@ proc parseJson*(s: Stream, filename: string = ""; rawIntegers = false, rawFloats
     p.close()
 
 when defined(js):
-  from math import `mod`
+  from std/math import `mod`
   from std/jsffi import JsObject, `[]`, to
   from std/private/jsutils import getProtoName, isInteger, isSafeInteger
 
@@ -1366,7 +1366,7 @@ proc to*[T](node: JsonNode, t: typedesc[T]): T =
   initFromJson(result, node, jsonPath)
 
 when false:
-  import os
+  import std/os
   var s = newFileStream(paramStr(1), fmRead)
   if s == nil: quit("cannot open the file" & paramStr(1))
   var x: JsonParser

lib/pure/lexbase.nim

@@ -12,7 +12,7 @@
 ## needs refilling.
 
 import
-  strutils, streams
+  std/[strutils, streams]
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/pure/logging.nim

@@ -146,9 +146,9 @@
 ## * `strscans module<strscans.html>`_ for ``scanf`` and ``scanp`` macros, which
 ##   offer easier substring extraction than regular expressions
 
-import strutils, times
+import std/[strutils, times]
 when not defined(js):
-  import os
+  import std/os
 
 when defined(nimPreviewSlimSystem):
   import std/syncio

lib/pure/marshal.nim

@@ -54,7 +54,7 @@ Please use alternative packages for serialization.
 It is possible to reimplement this module using generics and type traits.
 Please contribute a new implementation.""".}
 
-import streams, typeinfo, json, intsets, tables, unicode
+import std/[streams, typeinfo, json, intsets, tables, unicode]
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, formatfloat]

lib/pure/math.nim

@@ -57,7 +57,7 @@ import std/private/since
 {.push debugger: off.} # the user does not want to trace a part
                        # of the standard library!
 
-import bitops, fenv
+import std/[bitops, fenv]
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/pure/memfiles.nim

@@ -16,15 +16,15 @@
 ## other "line-like", variable length, delimited records).
 
 when defined(windows):
-  import winlean
+  import std/winlean
   when defined(nimPreviewSlimSystem):
     import std/widestrs
 elif defined(posix):
-  import posix
+  import std/posix
 else:
   {.error: "the memfiles module is not supported on your operating system!".}
 
-import streams
+import std/streams
 import std/oserrors
 
 when defined(nimPreviewSlimSystem):

lib/pure/mimetypes.nim

@@ -26,8 +26,8 @@ runnableExamples:
   doAssert m.getMimetype("fakext") == "text/fakelang"
   doAssert m.getMimetype("FaKeXT") == "text/fakelang"
 
-import tables
-from strutils import startsWith, toLowerAscii, strip
+import std/tables
+from std/strutils import startsWith, toLowerAscii, strip
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/pure/nativesockets.nim

@@ -12,7 +12,7 @@
 
 # TODO: Clean up the exports a bit and everything else in general.
 
-import os, options
+import std/[os, options]
 import std/private/since
 import std/strbasics
 
@@ -27,12 +27,12 @@ const useNimNetLite = defined(nimNetLite) or defined(freertos) or defined(zephyr
     defined(nuttx)
 
 when useWinVersion:
-  import winlean
+  import std/winlean
   export WSAEWOULDBLOCK, WSAECONNRESET, WSAECONNABORTED, WSAENETRESET,
          WSANOTINITIALISED, WSAENOTSOCK, WSAEINPROGRESS, WSAEINTR,
          WSAEDISCON, ERROR_NETNAME_DELETED
 else:
-  import posix
+  import std/posix
   export fcntl, F_GETFL, O_NONBLOCK, F_SETFL, EAGAIN, EWOULDBLOCK, MSG_NOSIGNAL,
     EINTR, EINPROGRESS, ECONNRESET, EPIPE, ENETRESET, EBADF
   export Sockaddr_storage, Sockaddr_un, Sockaddr_un_path_length

lib/pure/net.nim

@@ -93,9 +93,9 @@ import std/private/since
 when defined(nimPreviewSlimSystem):
   import std/assertions
 
-import nativesockets
-import os, strutils, times, sets, options, std/monotimes
-import ssl_config
+import std/nativesockets
+import std/[os, strutils, times, sets, options, monotimes]
+import std/ssl_config
 export nativesockets.Port, nativesockets.`$`, nativesockets.`==`
 export Domain, SockType, Protocol
 
@@ -105,12 +105,12 @@ const useNimNetLite = defined(nimNetLite) or defined(freertos) or defined(zephyr
 const defineSsl = defined(ssl) or defined(nimdoc)
 
 when useWinVersion:
-  from winlean import WSAESHUTDOWN
+  from std/winlean import WSAESHUTDOWN
 
 when defineSsl:
-  import openssl
+  import std/openssl
   when not defined(nimDisableCertificateValidation):
-    from ssl_certs import scanSSLCertificates
+    from std/ssl_certs import scanSSLCertificates
 
 # Note: The enumerations are mapped to Window's constants.
 
@@ -209,7 +209,7 @@ when defined(nimHasStyleChecks):
 
 
 when defined(posix) and not defined(lwip):
-  from posix import TPollfd, POLLIN, POLLPRI, POLLOUT, POLLWRBAND, Tnfds
+  from std/posix import TPollfd, POLLIN, POLLPRI, POLLOUT, POLLWRBAND, Tnfds
 
   template monitorPollEvent(x: var SocketHandle, y: cint, timeout: int): int =
     var tpollfd: TPollfd
@@ -1154,7 +1154,7 @@ proc accept*(server: Socket, client: var owned(Socket),
   acceptAddr(server, client, addrDummy, flags)
 
 when defined(posix) and not defined(lwip):
-  from posix import Sigset, sigwait, sigismember, sigemptyset, sigaddset,
+  from std/posix import Sigset, sigwait, sigismember, sigemptyset, sigaddset,
     sigprocmask, pthread_sigmask, SIGPIPE, SIG_BLOCK, SIG_UNBLOCK
 
 template blockSigpipe(body: untyped): untyped =
@@ -1268,9 +1268,9 @@ proc close*(socket: Socket, flags = {SocketFlag.SafeDisconn}) =
     socket.fd = osInvalidSocket
 
 when defined(posix):
-  from posix import TCP_NODELAY
+  from std/posix import TCP_NODELAY
 else:
-  from winlean import TCP_NODELAY
+  from std/winlean import TCP_NODELAY
 
 proc toCInt*(opt: SOBool): cint =
   ## Converts a `SOBool` into its Socket Option cint representation.

lib/pure/nimprof.nim

@@ -20,7 +20,7 @@ when not defined(profiler) and not defined(memProfiler):
 # We don't want to profile the profiling code ...
 {.push profiler: off.}
 
-import hashes, algorithm, strutils, tables, sets
+import std/[hashes, algorithm, strutils, tables, sets]
 
 when defined(nimPreviewSlimSystem):
   import std/[syncio, sysatomics]
@@ -69,7 +69,7 @@ when not defined(memProfiler):
     else: interval = intervalInUs * 1000 - tickCountCorrection
 
 when withThreads:
-  import locks
+  import std/locks
   var
     profilingLock: Lock
 

lib/pure/oids.nim

@@ -14,7 +14,7 @@
 ## This implementation calls `initRand()` for the first call of
 ## `genOid`.
 
-import hashes, times, endians, random
+import std/[hashes, times, endians, random]
 from std/private/decode_helpers import handleHexChar
 
 when defined(nimPreviewSlimSystem):

lib/pure/options.nim

@@ -74,7 +74,7 @@ when defined(nimHasEffectsOf):
 else:
   {.pragma: effectsOf.}
 
-import typetraits
+import std/typetraits
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/pure/os.nim

@@ -52,7 +52,7 @@ import std/private/since
 import std/cmdline
 export cmdline
 
-import strutils, pathnorm
+import std/[strutils, pathnorm]
 
 when defined(nimPreviewSlimSystem):
   import std/[syncio, assertions, widestrs]
@@ -76,9 +76,9 @@ since (1, 1):
 when weirdTarget:
   discard
 elif defined(windows):
-  import winlean, times
+  import std/[winlean, times]
 elif defined(posix):
-  import posix, times
+  import std/[posix, times]
 
   proc toTime(ts: Timespec): times.Time {.inline.} =
     result = initTime(ts.tv_sec.int64, ts.tv_nsec.int)

lib/pure/osproc.nim

@@ -18,18 +18,18 @@
 include "system/inclrtl"
 
 import
-  strutils, os, strtabs, streams, cpuinfo, streamwrapper,
-  std/private/since
+  std/[strutils, os, strtabs, streams, cpuinfo, streamwrapper,
+  private/since]
 
 export quoteShell, quoteShellWindows, quoteShellPosix
 
 when defined(windows):
-  import winlean
+  import std/winlean
 else:
-  import posix
+  import std/posix
 
 when defined(linux) and defined(useClone):
-  import linux
+  import std/linux
 
 when defined(nimPreviewSlimSystem):
   import std/[syncio, assertions]
@@ -1231,7 +1231,7 @@ elif not defined(useNimRtl):
 
   when defined(macosx) or defined(freebsd) or defined(netbsd) or
        defined(openbsd) or defined(dragonfly):
-    import kqueue
+    import std/kqueue
 
     proc waitForExit(p: Process, timeout: int = -1): int =
       if p.exitFlag:
@@ -1353,7 +1353,7 @@ elif not defined(useNimRtl):
       result = exitStatusLikeShell(p.exitStatus)
 
   else:
-    import times
+    import std/times
 
     const
       hasThreadSupport = compileOption("threads") and not defined(nimscript)

lib/pure/parsecfg.nim

@@ -170,7 +170,7 @@ runnableExamples:
   assert dict.getSectionValue(section4, "does_that_mean_anything_special") == "False"
   assert dict.getSectionValue(section4, "purpose") == "formatting for readability"
 
-import strutils, lexbase, streams, tables
+import std/[strutils, lexbase, streams, tables]
 import std/private/decode_helpers
 import std/private/since
 

lib/pure/parsecsv.nim

@@ -67,7 +67,7 @@
 ## * `parsesql module <parsesql.html>`_ for a SQL parser
 ## * `other parsers <lib.html#pure-libraries-parsers>`_ for other parsers
 
-import lexbase, streams
+import std/[lexbase, streams]
 
 when defined(nimPreviewSlimSystem):
   import std/syncio
@@ -349,7 +349,7 @@ proc rowEntry*(self: var CsvParser, entry: string): var string =
     raise newException(KeyError, "Entry `" & entry & "` doesn't exist")
 
 when not defined(testing) and isMainModule:
-  import os
+  import std/os
   var s = newFileStream(paramStr(1), fmRead)
   if s == nil: quit("cannot open the file" & paramStr(1))
   var x: CsvParser

lib/pure/parsejson.nim

@@ -11,7 +11,7 @@
 ## and exported by the `json` standard library
 ## module, but can also be used in its own right.
 
-import strutils, lexbase, streams, unicode
+import std/[strutils, lexbase, streams, unicode]
 import std/private/decode_helpers
 
 when defined(nimPreviewSlimSystem):

lib/pure/parseopt.nim

@@ -176,7 +176,7 @@
 
 include "system/inclrtl"
 
-import os
+import std/os
 
 type
   CmdLineKind* = enum ## The detected command line token.

lib/pure/parsesql.nim

@@ -12,7 +12,7 @@
 ##
 ## Unstable API.
 
-import strutils, lexbase
+import std/[strutils, lexbase]
 import std/private/decode_helpers
 
 when defined(nimPreviewSlimSystem):
@@ -1491,7 +1491,7 @@ proc treeRepr*(s: SqlNode): string =
   result = newStringOfCap(128)
   treeReprAux(s, 0, result)
 
-import streams
+import std/streams
 
 proc open(L: var SqlLexer, input: Stream, filename: string) =
   lexbase.open(L, input)

lib/pure/parsexml.nim

@@ -41,7 +41,7 @@ document.
   # This program reads an HTML file and writes its title to stdout.
   # Errors and whitespace are ignored.
 
-  import os, streams, parsexml, strutils
+  import std/[os, streams, parsexml, strutils]
 
   if paramCount() < 1:
     quit("Usage: htmltitle filename[.html]")
@@ -90,7 +90,7 @@ an HTML document contains.
   # This program reads an HTML file and writes all its used links to stdout.
   # Errors and whitespace are ignored.
 
-  import os, streams, parsexml, strutils
+  import std/[os, streams, parsexml, strutils]
 
   proc `=?=` (a, b: string): bool =
     # little trick: define our own comparator that ignores case
@@ -147,7 +147,7 @@ an HTML document contains.
 ]##
 
 import
-  strutils, lexbase, streams, unicode
+  std/[strutils, lexbase, streams, unicode]
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, syncio]
@@ -792,7 +792,7 @@ proc next*(my: var XmlParser) =
     my.state = stateNormal
 
 when not defined(testing) and isMainModule:
-  import os
+  import std/os
   var s = newFileStream(paramStr(1), fmRead)
   if s == nil: quit("cannot open the file" & paramStr(1))
   var x: XmlParser

lib/pure/pegs.nim

@@ -22,11 +22,11 @@ when defined(nimPreviewSlimSystem):
 const
   useUnicode = true ## change this to deactivate proper UTF-8 support
 
-import strutils, macros
+import std/[strutils, macros]
 import std/private/decode_helpers
 
 when useUnicode:
-  import unicode
+  import std/unicode
   export unicode.`==`
 
 const

lib/pure/random.nim

@@ -71,7 +71,7 @@ runnableExamples:
 ## * `list of cryptographic and hashing modules <lib.html#pure-libraries-hashing>`_
 ##   in the standard library
 
-import algorithm, math
+import std/[algorithm, math]
 import std/private/[since, jsutils]
 
 when defined(nimPreviewSlimSystem):
@@ -670,7 +670,7 @@ when not defined(standalone):
       import std/[hashes, os, sysrand, monotimes]
 
       when compileOption("threads"):
-        import locks
+        import std/locks
         var baseSeedLock: Lock
         baseSeedLock.initLock
 

lib/pure/rationals.nim

@@ -21,7 +21,7 @@ runnableExamples:
   doAssert r1 * r2 == -3 // 8
   doAssert r1 / r2 == -2 // 3
 
-import math, hashes
+import std/[math, hashes]
 when defined(nimPreviewSlimSystem):
   import std/assertions
 

lib/pure/reservedmem.nim

@@ -44,7 +44,7 @@ type
     mem: ReservedMem
 
 when defined(windows):
-  import winlean
+  import std/winlean
   import std/private/win_getsysteminfo
 
   proc getAllocationGranularity: uint =
@@ -68,7 +68,7 @@ when defined(windows):
       raiseOSError(osLastError())
 
 else:
-  import posix
+  import std/posix
 
   let allocationGranularity = sysconf(SC_PAGESIZE)
 

lib/pure/ropes.nim

@@ -17,7 +17,7 @@
 ## runtime efficiency.
 
 include system/inclrtl
-import streams
+import std/streams
 
 when defined(nimPreviewSlimSystem):
   import std/[syncio, formatfloat, assertions]

lib/pure/segfaults.nim

@@ -26,7 +26,7 @@ se.msg = "Could not access value because it is nil."
 when defined(windows):
   include "../system/ansi_c"
 
-  import winlean
+  import std/winlean
 
   const
     EXCEPTION_ACCESS_VIOLATION = DWORD(0xc0000005'i32)
@@ -65,7 +65,7 @@ when defined(windows):
     c_signal(SIGSEGV, segfaultHandler)
 
 else:
-  import posix
+  import std/posix
 
   var sa: Sigaction
 

lib/pure/selectors.nim

@@ -27,7 +27,7 @@
 ##
 ## TODO: `/dev/poll`, `event ports` and filesystem events.
 
-import nativesockets
+import std/nativesockets
 import std/oserrors
 
 when defined(nimPreviewSlimSystem):
@@ -235,9 +235,9 @@ when defined(nimdoc):
     ## For *poll* and *select* selectors `-1` is returned.
 
 else:
-  import strutils
+  import std/strutils
   when hasThreadSupport:
-    import locks
+    import std/locks
 
     type
       SharedArray[T] = UncheckedArray[T]
@@ -288,7 +288,7 @@ else:
     setBlocking(fd.SocketHandle, false)
 
   when not defined(windows):
-    import posix
+    import std/posix
 
     template setKey(s, pident, pevents, pparam, pdata: untyped) =
       var skey = addr(s.fds[pident])

lib/pure/ssl_certs.nim

@@ -10,7 +10,7 @@
 ## The default locations can be overridden using the SSL_CERT_FILE and
 ## SSL_CERT_DIR environment variables.
 
-import os, strutils
+import std/[os, strutils]
 
 # FWIW look for files before scanning entire dirs.
 
@@ -150,7 +150,7 @@ iterator scanSSLCertificates*(useEnvVars = false): string =
 # Certificates management on windows
 # when defined(windows) or defined(nimdoc):
 #
-#   import openssl
+#   import std/openssl
 #
 #   type
 #     PCCertContext {.final, pure.} = pointer

lib/pure/stats.nim

@@ -53,7 +53,7 @@ runnableExamples:
   doAssert statistics.kurtosis() ~= -1.0
   doAssert statistics.kurtosisS() ~= -0.7000000000000008
 
-from math import FloatClass, sqrt, pow, round
+from std/math import FloatClass, sqrt, pow, round
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, formatfloat]

lib/pure/streams.nim

@@ -1482,7 +1482,7 @@ when false:
     # do not import windows as this increases compile times:
     discard
   else:
-    import posix
+    import std/posix
 
     proc hsSetPosition(s: FileHandleStream, pos: int) =
       discard lseek(s.handle, pos, SEEK_SET)

lib/pure/streamwrapper.nim

@@ -11,7 +11,7 @@
 ##
 ## **Since** version 1.2.
 
-import deques, streams
+import std/[deques, streams]
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/pure/strformat.nim

@@ -316,8 +316,8 @@ help with readability, since there is only so much you can cram into
 single letter DSLs.
 ]##
 
-import macros, parseutils, unicode
-import strutils except format
+import std/[macros, parseutils, unicode]
+import std/strutils except format
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/pure/strscans.nim

@@ -283,7 +283,7 @@ efficiency and perform different checks.
 ]##
 
 
-import macros, parseutils
+import std/[macros, parseutils]
 import std/private/since
 
 when defined(nimPreviewSlimSystem):

lib/pure/strtabs.nim

@@ -51,7 +51,7 @@ runnableExamples:
 import std/private/since
 
 import
-  hashes, strutils
+  std/[hashes, strutils]
 
 when defined(nimPreviewSlimSystem):
   import std/assertions

lib/pure/strutils.nim

@@ -70,12 +70,12 @@ runnableExamples:
 ##   easier substring extraction than regular expressions
 
 
-import parseutils
-from math import pow, floor, log10
-from algorithm import fill, reverse
+import std/parseutils
+from std/math import pow, floor, log10
+from std/algorithm import fill, reverse
 import std/enumutils
 
-from unicode import toLower, toUpper
+from std/unicode import toLower, toUpper
 export toLower, toUpper
 
 include "system/inclrtl"

lib/pure/sugar.nim

@@ -11,7 +11,7 @@
 ## macro system.
 
 import std/private/since
-import macros
+import std/macros
 
 proc checkPragma(ex, prag: var NimNode) =
   since (1, 3):

lib/pure/terminal.nim

@@ -58,13 +58,13 @@ runnableExamples("-r:off"):
 
   stdout.styledWriteLine(fgRed, "red text ", styleBright, "bold red", fgDefault, " bold text")
 
-import macros
-import strformat
-from strutils import toLowerAscii, `%`, parseInt
-import colors
+import std/macros
+import std/strformat
+from std/strutils import toLowerAscii, `%`, parseInt
+import std/colors
 
 when defined(windows):
-  import winlean
+  import std/winlean
 
 when defined(nimPreviewSlimSystem):
   import std/[syncio, assertions]
@@ -100,7 +100,7 @@ const
   stylePrefix = "\e["
 
 when defined(windows):
-  import winlean, os
+  import std/[winlean, os]
 
   const
     DUPLICATE_SAME_ACCESS = 2
@@ -257,7 +257,7 @@ when defined(windows):
     if f == stderr: term.hStderr else: term.hStdout
 
 else:
-  import termios, posix, os, parseutils
+  import std/[termios, posix, os, parseutils]
 
   proc setRaw(fd: FileHandle, time: cint = TCSAFLUSH) =
     var mode: Termios
@@ -922,7 +922,7 @@ when defined(windows):
     stdout.write "\n"
 
 else:
-  import termios
+  import std/termios
 
   proc readPasswordFromStdin*(prompt: string, password: var string):
                             bool {.tags: [ReadIOEffect, WriteIOEffect].} =
@@ -978,7 +978,7 @@ proc isTrueColorSupported*(): bool =
   return getTerminal().trueColorIsSupported
 
 when defined(windows):
-  import os
+  import std/os
 
 proc enableTrueColors*() =
   ## Enables true color.

lib/pure/times.nim

@@ -203,7 +203,7 @@
   * `monotimes module <monotimes.html>`_
 ]##
 
-import strutils, math, options
+import std/[strutils, math, options]
 
 import std/private/since
 include "system/inclrtl"
@@ -213,7 +213,7 @@ when defined(nimPreviewSlimSystem):
 
 
 when defined(js):
-  import jscore
+  import std/jscore
 
   # This is really bad, but overflow checks are broken badly for
   # ints on the JS backend. See #6752.
@@ -237,7 +237,7 @@ when defined(js):
   {.pop.}
 
 elif defined(posix):
-  import posix
+  import std/posix
 
   type CTime = posix.Time
 
@@ -246,7 +246,7 @@ elif defined(posix):
       {.importc: "gettimeofday", header: "<sys/time.h>", sideEffect.}
 
 elif defined(windows):
-  import winlean, std/time_t
+  import std/winlean, std/time_t
 
   type
     CTime = time_t.Time

lib/pure/typetraits.nim

@@ -204,7 +204,7 @@ since (1, 3, 5):
 
     typeof(block: (for ai in a: ai))
 
-import macros
+import std/macros
 
 macro enumLen*(T: typedesc[enum]): int =
   ## Returns the number of items in the enum `T`.

lib/pure/unittest.nim

@@ -111,15 +111,15 @@ import std/exitprocs
 when defined(nimPreviewSlimSystem):
   import std/assertions
 
-import macros, strutils, streams, times, sets, sequtils
+import std/[macros, strutils, streams, times, sets, sequtils]
 
 when declared(stdout):
-  import os
+  import std/os
 
 const useTerminal = not defined(js)
 
 when useTerminal:
-  import terminal
+  import std/terminal
 
 type
   TestStatus* = enum ## The status of a test when it is done.