closes bpo-40385: Remove Tools/scripts/checkpyc.py (GH-19709)

This is one of the few files that has intimate knowledge of the pyc file
format. Since it lacks tests it tends to become outdated fairly quickly.
At present it has been broken since the introduction of PEP 552.

1 files changed, 0 insertions, 69 deletions

diff --git a/Tools/scripts/checkpyc.py b/Tools/scripts/checkpyc.py
deleted file mode 100755
index bbaa3d1328..0000000000
--- a/Tools/scripts/checkpyc.py
+++ /dev/null
@@ -1,69 +0,0 @@
-#! /usr/bin/env python3
-# Check that all ".pyc" files exist and are up-to-date
-# Uses module 'os'
-
-import sys
-import os
-from stat import ST_MTIME
-import importlib.util
-
-# PEP 3147 compatibility (PYC Repository Directories)
-cache_from_source = (importlib.util.cache_from_source if sys.implementation.cache_tag
-                     else lambda path: path + 'c')
-
-
-def main():
-    if len(sys.argv) > 1:
-        verbose = (sys.argv[1] == '-v')
-        silent = (sys.argv[1] == '-s')
-    else:
-        verbose = silent = False
-    MAGIC = importlib.util.MAGIC_NUMBER
-    if not silent:
-        print('Using MAGIC word', repr(MAGIC))
-    for dirname in sys.path:
-        try:
-            names = os.listdir(dirname)
-        except OSError:
-            print('Cannot list directory', repr(dirname))
-            continue
-        if not silent:
-            print('Checking ', repr(dirname), '...')
-        for name in sorted(names):
-            if name.endswith('.py'):
-                name = os.path.join(dirname, name)
-                try:
-                    st = os.stat(name)
-                except OSError:
-                    print('Cannot stat', repr(name))
-                    continue
-                if verbose:
-                    print('Check', repr(name), '...')
-                name_c = cache_from_source(name)
-                try:
-                    with open(name_c, 'rb') as f:
-                        magic_str = f.read(4)
-                        mtime_str = f.read(4)
-                except IOError:
-                    print('Cannot open', repr(name_c))
-                    continue
-                if magic_str != MAGIC:
-                    print('Bad MAGIC word in ".pyc" file', end=' ')
-                    print(repr(name_c))
-                    continue
-                mtime = get_long(mtime_str)
-                if mtime in {0, -1}:
-                    print('Bad ".pyc" file', repr(name_c))
-                elif mtime != st[ST_MTIME]:
-                    print('Out-of-date ".pyc" file', end=' ')
-                    print(repr(name_c))
-
-
-def get_long(s):
-    if len(s) != 4:
-        return -1
-    return s[0] + (s[1] << 8) + (s[2] << 16) + (s[3] << 24)
-
-
-if __name__ == '__main__':
-    main()