Implement PEP 477 - Backport ensurepip (PEP 453) to 2.7
* Backports ensurepip to the 2.7 branch
* Backports some of the improved documentation to the 2.7 branch.
* Adds a private backport of the 3.x mock library as test._mock_backport
to enable saner testing of ensurepip.
Key Differences from 3.x:
* Ensurepip does not have any Makefile integration, specifically
it is not ran by default in the Makefile.
* There is no venv module in 2.7, so downstream distributors can
completely disable ensurepip, ideally with a message redirecting
to the correct way to install pip.
* To match the ``python`` command in 2.7, ensurepip will install
the unversioned ``pip`` command as well.
* No-op and hide --default-pip and add --no-default-pip to restore
the 3.x behavor on 2.7.
diff --git a/Tools/scripts/checkpip.py b/Tools/scripts/checkpip.py
new file mode 100644
index 0000000..1b6049d
--- /dev/null
+++ b/Tools/scripts/checkpip.py
@@ -0,0 +1,31 @@
+#!/usr/bin/env python2
+"""
+Checks that the version of the projects bundled in ensurepip are the latest
+versions available.
+"""
+import ensurepip
+import json
+import urllib2
+import sys
+
+
+def main():
+ outofdate = False
+
+ for project, version in ensurepip._PROJECTS:
+ data = json.loads(urllib2.urlopen(
+ "https://pypi.python.org/pypi/{}/json".format(project),
+ ).read().decode("utf8"))
+ upstream_version = data["info"]["version"]
+
+ if version != upstream_version:
+ outofdate = True
+ print("The latest version of {} on PyPI is {}, but ensurepip "
+ "has {}".format(project, upstream_version, version))
+
+ if outofdate:
+ sys.exit(1)
+
+
+if __name__ == "__main__":
+ main()