Quick and dirty script to list unpinned dependencies in a requirements.txt

find_unpinned.py

from pip.req import InstallRequirement, RequirementSet, parse_requirements
from pip.index import PackageFinder

import tempfile
import shutil

build_dir = tempfile.mkdtemp()
src_dir = tempfile.mkdtemp()
download_dir = tempfile.mkdtemp()

try:
    finder = PackageFinder([], ['https://pypi.python.org/simple'])

    rset = RequirementSet(
        build_dir = build_dir,
        src_dir = src_dir,
        download_dir = download_dir,
        )

    #rset.add_requirement(InstallRequirement.from_line("celery==3.1.5"))
    #rset.add_requirement(InstallRequirement.from_line("amqp==1.3.3"))

    for req in parse_requirements("requirements.txt", finder):
        rset.add_requirement(req)

    rset.prepare_files(finder)

    print "Please add the following pins:"
    for key in sorted(rset.requirements.keys()):
        r = rset.requirements[key]

        for test, ver in r.req.specs:
            if test == '==':
                break
        else:
            print "%s==%s" % (r.req.project_name, r.installed_version)

finally:
    for d in [build_dir, src_dir, download_dir]:
        shutil.rmtree(d)