jacobian · May 1, 2012 05:22 · May 1, 2012 · May 1, 2012
diff --git a/pip-cache-install.py b/pip-cache-install.py
@@ -1,5 +1,44 @@
 #!/usr/bin/env python
 
+"""
+Install a package from your local pip download cache without having to touch
+the 'net at all.
+
+You'll need to be using a pip download cache; that is, you'll need the
+following in your ~/.pip/pip.cfg:
+
+    [install]
+    download-cache = /path/to/some/dir
+
+And you'll need to have already installed the package(s) in question at
+some time before your hotel's wifi went down.
+
+But if you've done the above, then BEHOLD::
+
+    $ pip-cache-install.py Django
+    Found:
+      (0) Django-1.2.4.tar.gz
+      (1) Django-1.2.5.tar.gz
+      (2) Django-1.3.1.tar.gz
+      (3) Django-1.3.tar.gz
+      (4) Django-1.4.tar.gz
+      (5) Django-1.4-alpha-1.tar.gz
+
+    Install which package? 4
+    Unpacking ./.pip/dlcache/http%3A%2F%2Fpypi.python.org%2Fpackages%2Fsource%2FD%2FDjango%2FDjango-1.4.tar.gz
+      Running setup.py egg_info for package from file:///Users/jacob/.pip/dlcache/http%253A%252F%252Fpypi.python.org%252Fpackages%252Fsource%252FD%252FDjango%252FDjango-1.4.tar.gz
+
+    Installing collected packages: Django
+      Running setup.py install for Django
+        changing mode of build/scripts-2.7/django-admin.py from 644 to 755
+
+        changing mode of /Users/jacob/.virtualenvs/yapc/bin/django-admin.py to 755
+    Successfully installed Django
+    Cleaning up...
+
+Nifty, eh?
+"""
+
 import os
 import sys
 import glob

diff --git a/pip-cache-install.py b/pip-cache-install.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python
+
+import os
+import sys
+import glob
+import ConfigParser
+
+def main(argv):
+    try:
+        package_name = argv[1]
+    except KeyError:
+        print "Usage: %s package-name" % argv[0]
+        return 1
+
+    pipcfg = ConfigParser.ConfigParser()
+    if not pipcfg.read(os.path.expanduser('~/.pip/pip.conf')):
+        print "Failed to read ~/.pip/pip.conf."
+        return 1
+
+    try:
+        dlcache = pipcfg.get('install', 'download-cache')
+    except ConfigParser.Error:
+        print "~/.pip/pip.conf have [install] download-cache defined."
+        return 1
+
+    matches = glob.glob1(dlcache, "*%s*.tar.gz" % package_name)
+    if not matches:
+        print "No match for %s." % package_name
+        return 1
+
+    if len(matches) == 1:
+        return os.system('pip install %s' % os.path.join(dlcache, matches[0]))
+
+    packages = [p.rsplit('%2F', 1)[1] for p in matches]
+    print "Found:"
+    for i, p in enumerate(packages):
+        print "  (%s) %s" % (i, p)
+    print
+    install_index = None
+    while not install_index:
+        try:
+            choice = int(raw_input("Install which package? "))
+        except (ValueError, TypeError):
+            continue
+        if choice in range(len(packages)):
+            install_index = choice
+
+    return os.system('pip install %s' % os.path.join(dlcache, matches[install_index]))
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))