Traceback occurs in cd $HOME/swift; sudo pip install -r requirements.txt; in master version of Swift

[sumit]

root@necuser-HP-ProBook-430-G1:~/swift# cd $HOME/swift; sudo pip install -r requirements.txt;
Exception:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 122, in main
    status = self.run(options, args)
  File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 262, in run
    for req in parse_requirements(filename, finder=finder, options=options, session=session):
  File "/usr/lib/python2.7/dist-packages/pip/req.py", line 1632, in parse_requirements
    req = InstallRequirement.from_line(line, comes_from, prereleases=getattr(options, "pre", None))
  File "/usr/lib/python2.7/dist-packages/pip/req.py", line 173, in from_line
    return cls(req, comes_from, url=url, prereleases=prereleases)
  File "/usr/lib/python2.7/dist-packages/pip/req.py", line 71, in __init__
    req = pkg_resources.Requirement.parse(req)
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2667, in parse
    reqs = list(parse_requirements(s))
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2605, in parse_requirements
    line, p, specs = scan_list(VERSION,LINE_END,line,p,(1,2),"version spec")
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2583, in scan_list
    "Expected ',' or end-of-list in",line,"at",line[p:]
ValueError: ("Expected ',' or end-of-list in", "dnspython>=1.12.0;python_version<'3.0'", 'at', ";python_version<'3.0'")

Storing debug log for failure in /root/.pip/pip.log

[sumit (er-sksumit)]

This was perfectly fine in previous versions, and can be run successfully with following changes in requirements.txt:-

dnspython>=1.12.0,
dnspython3>=1.12.0,
eventlet>=0.16.1,!=0.17.0,
greenlet>=0.3.1,
netifaces>=0.5,!=0.10.0,!=0.10.1,
pastedeploy>=1.3.3,
six>=1.9.0,
xattr>=0.4,
PyECLib>=1.0.7

[Tom Fanning (tfanning)]

I've just installed using the following requirements.txt:

dnspython>=1.12.0,
dnspython3>=1.12.0,
eventlet>=0.17.4,
greenlet>=0.3.1,
netifaces>=0.5,!=0.10.0,!=0.10.1,
pastedeploy>=1.3.3,
six>=1.9.0,
xattr>=0.4,
PyECLib>=1.2.0,
cryptography>=1.0,!=1.3.0,