[Python-checkins] cpython: Start a shared utility script for poking around at the import internals

[nick.coghlan]

http://hg.python.org/cpython/rev/e91a8467328b
changeset:   76553:e91a8467328b
user:        Nick Coghlan <ncoghlan at gmail.com>
date:        Wed Apr 25 22:17:54 2012 +1000
summary:
  Start a shared utility script for poking around at the import internals

files:
  Tools/scripts/import_diagnostics.py |  39 +++++++++++++++++
  1 files changed, 39 insertions(+), 0 deletions(-)


diff --git a/Tools/scripts/import_diagnostics.py b/Tools/scripts/import_diagnostics.py
new file mode 100755
--- /dev/null
+++ b/Tools/scripts/import_diagnostics.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+"""Miscellaneous diagnostics for the import system"""
+
+import sys
+import argparse
+from pprint import pprint
+
+def _dump_state(args):
+    print(sys.version)
+    print("sys.path:")
+    pprint(sys.path)
+    print("sys.meta_path")
+    pprint(sys.meta_path)
+    print("sys.path_hooks")
+    pprint(sys.path_hooks)
+    print("sys.path_importer_cache")
+    pprint(sys.path_importer_cache)
+    print("sys.modules:")
+    pprint(sys.modules)
+
+COMMANDS = (
+  ("dump", "Dump import state", _dump_state),
+)
+
+def _make_parser():
+    parser = argparse.ArgumentParser()
+    sub = parser.add_subparsers(title="Commands")
+    for name, description, implementation in COMMANDS:
+        cmd = sub.add_parser(name, help=description)
+        cmd.set_defaults(command=implementation)
+    return parser
+
+def main(args):
+    parser = _make_parser()
+    args = parser.parse_args(args)
+    return args.command(args)
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))

-- 
Repository URL: http://hg.python.org/cpython