"""Inspect a target Python interpreter virtual environment wise"""
import sys # built-in
PYPY2_WIN = hasattr(sys, "pypy_version_info") and sys.platform != "win32" and sys.version_info[0] == 2
def encode_path(value):
if value is None:
return None
if not isinstance(value, (str, bytes)):
if isinstance(value, type):
value = repr(value)
else:
value = repr(type(value))
if isinstance(value, bytes) and not PYPY2_WIN:
value = value.decode(sys.getfilesystemencoding())
return value
def encode_list_path(value):
return [encode_path(i) for i in value]
def run():
"""print debug data about the virtual environment"""
try:
from collections import OrderedDict
except ImportError: # pragma: no cover
# this is possible if the standard library cannot be accessed
# noinspection PyPep8Naming
OrderedDict = dict # pragma: no cover # noqa: N806
result = OrderedDict([("sys", OrderedDict())])
path_keys = (
"executable",
"_base_executable",
"prefix",
"base_prefix",
"real_prefix",
"exec_prefix",
"base_exec_prefix",
"path",
"meta_path",
)
for key in path_keys:
value = getattr(sys, key, None)
if isinstance(value, list):
value = encode_list_path(value)
else:
value = encode_path(value)
result["sys"][key] = value
result["sys"]["fs_encoding"] = sys.getfilesystemencoding()
result["sys"]["io_encoding"] = getattr(sys.stdout, "encoding", None)
result["version"] = sys.version
try:
import sysconfig
# https://bugs.python.org/issue22199
makefile = getattr(sysconfig, "get_makefile_filename", getattr(sysconfig, "_get_makefile_filename", None))
result["makefile_filename"] = encode_path(makefile())
except ImportError:
pass
import os # landmark
result["os"] = repr(os)
try:
# noinspection PyUnresolvedReferences
import site # site
result["site"] = repr(site)
except ImportError as exception: # pragma: no cover
result["site"] = repr(exception) # pragma: no cover
try:
# noinspection PyUnresolvedReferences
import datetime # site
result["datetime"] = repr(datetime)
except ImportError as exception: # pragma: no cover
result["datetime"] = repr(exception) # pragma: no cover
try:
# noinspection PyUnresolvedReferences
import math # site
result["math"] = repr(math)
except ImportError as exception: # pragma: no cover
result["math"] = repr(exception) # pragma: no cover
# try to print out, this will validate if other core modules are available (json in this case)
try:
import json
result["json"] = repr(json)
except ImportError as exception:
result["json"] = repr(exception)
else:
try:
content = json.dumps(result, indent=2)
sys.stdout.write(content)
except (ValueError, TypeError) as exception: # pragma: no cover
sys.stderr.write(repr(exception))
sys.stdout.write(repr(result)) # pragma: no cover
raise SystemExit(1) # pragma: no cover
if __name__ == "__main__":
run()
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