Issue #17177: Stop using imp in distutils

Lib/distutils/command/build_py.py

@@ -3,7 +3,7 @@
 Implements the Distutils 'build_py' command."""
 
 import os
-import imp
+import importlib.util
 import sys
 from glob import glob
 
@@ -312,11 +312,11 @@ class build_py (Command):
             outputs.append(filename)
             if include_bytecode:
                 if self.compile:
-                    outputs.append(imp.cache_from_source(filename,
-                                                         debug_override=True))
+                    outputs.append(importlib.util.cache_from_source(
+                        filename, debug_override=True))
                 if self.optimize > 0:
-                    outputs.append(imp.cache_from_source(filename,
-                                                         debug_override=False))
+                    outputs.append(importlib.util.cache_from_source(
+                        filename, debug_override=False))
 
         outputs += [
             os.path.join(build_dir, filename)

Lib/distutils/command/install_lib.py

@@ -4,7 +4,7 @@ Implements the Distutils 'install_lib' command
 (install all Python modules)."""
 
 import os
-import imp
+import importlib.util
 import sys
 
 from distutils.core import Command
@@ -165,10 +165,10 @@ class install_lib(Command):
             if ext != PYTHON_SOURCE_EXTENSION:
                 continue
             if self.compile:
-                bytecode_files.append(imp.cache_from_source(
+                bytecode_files.append(importlib.util.cache_from_source(
                     py_file, debug_override=True))
             if self.optimize > 0:
-                bytecode_files.append(imp.cache_from_source(
+                bytecode_files.append(importlib.util.cache_from_source(
                     py_file, debug_override=False))
 
         return bytecode_files

Lib/distutils/tests/test_bdist_dumb.py

 """Tests for distutils.command.bdist_dumb."""
 
 import os
-import imp
 import sys
 import zipfile
 import unittest
@@ -88,7 +87,7 @@ class BuildDumbTestCase(support.TempdirManager,
         contents = sorted(os.path.basename(fn) for fn in contents)
         wanted = ['foo-0.1-py%s.%s.egg-info' % sys.version_info[:2], 'foo.py']
         if not sys.dont_write_bytecode:
-            wanted.append('foo.%s.pyc' % imp.get_tag())
+            wanted.append('foo.%s.pyc' % sys.implementation.cache_tag)
         self.assertEqual(contents, sorted(wanted))
 
 def test_suite():

Lib/distutils/tests/test_build_py.py

@@ -2,7 +2,6 @@
 
 import os
 import sys
-import imp
 import unittest
 
 from distutils.command.build_py import build_py
@@ -63,7 +62,8 @@ class BuildPyTestCase(support.TempdirManager,
             self.assertFalse(os.path.exists(pycache_dir))
         else:
             pyc_files = os.listdir(pycache_dir)
-            self.assertIn("__init__.%s.pyc" % imp.get_tag(), pyc_files)
+            self.assertIn("__init__.%s.pyc" % sys.implementation.cache_tag,
+                          pyc_files)
 
     def test_empty_package_dir(self):
         # See bugs #1668596/#1720897
@@ -102,7 +102,8 @@ class BuildPyTestCase(support.TempdirManager,
         found = os.listdir(cmd.build_lib)
         self.assertEqual(sorted(found), ['__pycache__', 'boiledeggs.py'])
         found = os.listdir(os.path.join(cmd.build_lib, '__pycache__'))
-        self.assertEqual(found, ['boiledeggs.%s.pyc' % imp.get_tag()])
+        self.assertEqual(found,
+                         ['boiledeggs.%s.pyc' % sys.implementation.cache_tag])
 
     @unittest.skipIf(sys.dont_write_bytecode, 'byte-compile disabled')
     def test_byte_compile_optimized(self):
@@ -119,7 +120,8 @@ class BuildPyTestCase(support.TempdirManager,
         found = os.listdir(cmd.build_lib)
         self.assertEqual(sorted(found), ['__pycache__', 'boiledeggs.py'])
         found = os.listdir(os.path.join(cmd.build_lib, '__pycache__'))
-        self.assertEqual(sorted(found), ['boiledeggs.%s.pyo' % imp.get_tag()])
+        self.assertEqual(sorted(found),
+                         ['boiledeggs.%s.pyo' % sys.implementation.cache_tag])
 
     def test_dont_write_bytecode(self):
         # makes sure byte_compile is not used

Lib/distutils/tests/test_install.py

 """Tests for distutils.command.install."""
 
 import os
-import imp
 import sys
 import unittest
 import site
@@ -193,7 +192,8 @@ class InstallTestCase(support.TempdirManager,
             f.close()
 
         found = [os.path.basename(line) for line in content.splitlines()]
-        expected = ['hello.py', 'hello.%s.pyc' % imp.get_tag(), 'sayhi',
+        expected = ['hello.py', 'hello.%s.pyc' % sys.implementation.cache_tag,
+                    'sayhi',
                     'UNKNOWN-0.0.0-py%s.%s.egg-info' % sys.version_info[:2]]
         self.assertEqual(found, expected)
 

Lib/distutils/tests/test_install_lib.py

 """Tests for distutils.command.install_data."""
 import sys
 import os
-import imp
+import importlib.util
 import unittest
 
 from distutils.command.install_lib import install_lib
@@ -44,8 +44,10 @@ class InstallLibTestCase(support.TempdirManager,
         f = os.path.join(project_dir, 'foo.py')
         self.write_file(f, '# python file')
         cmd.byte_compile([f])
-        pyc_file = imp.cache_from_source('foo.py', debug_override=True)
-        pyo_file = imp.cache_from_source('foo.py', debug_override=False)
+        pyc_file = importlib.util.cache_from_source('foo.py',
+                                                    debug_override=True)
+        pyo_file = importlib.util.cache_from_source('foo.py',
+                                                    debug_override=False)
         self.assertTrue(os.path.exists(pyc_file))
         self.assertTrue(os.path.exists(pyo_file))
 

Lib/distutils/util.py

@@ -6,7 +6,7 @@ one of the other *util.py modules.
 
 import os
 import re
-import imp
+import importlib.util
 import sys
 import string
 from distutils.errors import DistutilsPlatformError
@@ -453,9 +453,10 @@ byte_compile(files, optimize=%r, force=%r,
             #   cfile - byte-compiled file
             #   dfile - purported source filename (same as 'file' by default)
             if optimize >= 0:
-                cfile = imp.cache_from_source(file, debug_override=not optimize)
+                cfile = importlib.util.cache_from_source(
+                    file, debug_override=not optimize)
             else:
-                cfile = imp.cache_from_source(file)
+                cfile = importlib.util.cache_from_source(file)
             dfile = file
             if prefix:
                 if file[:len(prefix)] != prefix: