First commit

1 files changed, 63 insertions, 0 deletions

diff --git a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_vendor/packaging/utils.py b/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_vendor/packaging/utils.py
new file mode 100644
index 0000000..5151f9f
--- /dev/null
+++ b/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_vendor/packaging/utils.py
@@ -0,0 +1,63 @@
+# This file is dual licensed under the terms of the Apache License, Version

+# 2.0, and the BSD License. See the LICENSE file in the root of this repository

+# for complete details.

+from __future__ import absolute_import, division, print_function

+

+import re

+

+from .version import InvalidVersion, Version

+

+

+_canonicalize_regex = re.compile(r"[-_.]+")

+

+

+def canonicalize_name(name):

+    # This is taken from PEP 503.

+    return _canonicalize_regex.sub("-", name).lower()

+

+

+def canonicalize_version(version):

+    """

+    This is very similar to Version.__str__, but has one subtle differences

+    with the way it handles the release segment.

+    """

+

+    try:

+        version = Version(version)

+    except InvalidVersion:

+        # Legacy versions cannot be normalized

+        return version

+

+    parts = []

+

+    # Epoch

+    if version.epoch != 0:

+        parts.append("{0}!".format(version.epoch))

+

+    # Release segment

+    # NB: This strips trailing '.0's to normalize

+    parts.append(

+        re.sub(

+            r'(\.0)+$',

+            '',

+            ".".join(str(x) for x in version.release)

+        )

+    )

+

+    # Pre-release

+    if version.pre is not None:

+        parts.append("".join(str(x) for x in version.pre))

+

+    # Post-release

+    if version.post is not None:

+        parts.append(".post{0}".format(version.post))

+

+    # Development release

+    if version.dev is not None:

+        parts.append(".dev{0}".format(version.dev))

+

+    # Local version segment

+    if version.local is not None:

+        parts.append("+{0}".format(version.local))

+

+    return "".join(parts)