From 68df54d6629ec019142eb149dd037774f2d11e7c Mon Sep 17 00:00:00 2001
From: Shubham Saini <shubham6405@gmail.com>
Date: Tue, 11 Dec 2018 15:31:23 +0530
Subject: First commit

---
 .../pip/_internal/utils/packaging.py               | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/utils/packaging.py

(limited to 'venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/utils/packaging.py')

diff --git a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/utils/packaging.py b/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/utils/packaging.py
new file mode 100644
index 0000000..d523953
--- /dev/null
+++ b/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/utils/packaging.py
@@ -0,0 +1,70 @@
+from __future__ import absolute_import
+
+import logging
+import sys
+from email.parser import FeedParser  # type: ignore
+
+from pip._vendor import pkg_resources
+from pip._vendor.packaging import specifiers, version
+
+from pip._internal import exceptions
+
+logger = logging.getLogger(__name__)
+
+
+def check_requires_python(requires_python):
+    """
+    Check if the python version in use match the `requires_python` specifier.
+
+    Returns `True` if the version of python in use matches the requirement.
+    Returns `False` if the version of python in use does not matches the
+    requirement.
+
+    Raises an InvalidSpecifier if `requires_python` have an invalid format.
+    """
+    if requires_python is None:
+        # The package provides no information
+        return True
+    requires_python_specifier = specifiers.SpecifierSet(requires_python)
+
+    # We only use major.minor.micro
+    python_version = version.parse('.'.join(map(str, sys.version_info[:3])))
+    return python_version in requires_python_specifier
+
+
+def get_metadata(dist):
+    if (isinstance(dist, pkg_resources.DistInfoDistribution) and
+            dist.has_metadata('METADATA')):
+        return dist.get_metadata('METADATA')
+    elif dist.has_metadata('PKG-INFO'):
+        return dist.get_metadata('PKG-INFO')
+
+
+def check_dist_requires_python(dist):
+    metadata = get_metadata(dist)
+    feed_parser = FeedParser()
+    feed_parser.feed(metadata)
+    pkg_info_dict = feed_parser.close()
+    requires_python = pkg_info_dict.get('Requires-Python')
+    try:
+        if not check_requires_python(requires_python):
+            raise exceptions.UnsupportedPythonVersion(
+                "%s requires Python '%s' but the running Python is %s" % (
+                    dist.project_name,
+                    requires_python,
+                    '.'.join(map(str, sys.version_info[:3])),)
+            )
+    except specifiers.InvalidSpecifier as e:
+        logger.warning(
+            "Package %s has an invalid Requires-Python entry %s - %s",
+            dist.project_name, requires_python, e,
+        )
+        return
+
+
+def get_installer(dist):
+    if dist.has_metadata('INSTALLER'):
+        for line in dist.get_metadata_lines('INSTALLER'):
+            if line.strip():
+                return line.strip()
+    return ''
-- 
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