$ ./click-toolbelt 
Traceback (most recent call last):
  File "./click-toolbelt", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 33, in <module>
    import plistlib
  File "/usr/lib/python2.7/plistlib.py", line 62, in <module>
    import datetime
ImportError: No module named datetime
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
    from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python2.7/dist-packages/apport/__init__.py", line 5, in <module>
    from apport.report import Report
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 28, in <module>
    import problem_report
  File "/usr/lib/python2.7/dist-packages/problem_report.py", line 16, in <module>
    from email.mime.multipart import MIMEMultipart
  File "/usr/lib/python2.7/email/mime/multipart.py", line 9, in <module>
    from email.mime.base import MIMEBase
  File "/usr/lib/python2.7/email/mime/base.py", line 9, in <module>
    from email import message
  File "/usr/lib/python2.7/email/message.py", line 16, in <module>
    import email.charset
  File "/usr/lib/python2.7/email/charset.py", line 13, in <module>
    import email.base64mime
  File "/usr/lib/python2.7/email/base64mime.py", line 40, in <module>
    from email.utils import fix_eols
  File "/usr/lib/python2.7/email/utils.py", line 32, in <module>
    from email._parseaddr import quote
  File "/usr/lib/python2.7/email/_parseaddr.py", line 16, in <module>
    import time, calendar
  File "/usr/lib/python2.7/calendar.py", line 9, in <module>
    import datetime
ImportError: No module named datetime

Original exception was:
Traceback (most recent call last):
  File "./click-toolbelt", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 33, in <module>
    import plistlib
  File "/usr/lib/python2.7/plistlib.py", line 62, in <module>
    import datetime
ImportError: No module named datetime