pip: pip list |head raises BrokenPipeError

• Pip version: pip 9.0.1
• Python version: python 3.5
• Operating System: OS X 10.11.6 (15G1108)

Description:

pip list |tail works like it should

pip list |head … not so much

What I’ve run:

pip list |head

Output, for each package:

— Logging error — Traceback (most recent call last): File “/Users/…/anaconda/lib/python3.5/logging/init.py”, line 984, in emit self.flush() File “/Users/…/anaconda/lib/python3.5/logging/init.py”, line 964, in flush self.stream.flush() BrokenPipeError: [Errno 32] Broken pipe Call stack: File “/Users/…/anaconda/bin/pip”, line 6, in <module> sys.exit(pip.main()) File “/Users/…/anaconda/lib/python3.5/site-packages/pip/init.py”, line 249, in main return command.main(cmd_args) File “/Users/…/anaconda/lib/python3.5/site-packages/pip/basecommand.py”, line 215, in main status = self.run(options, args) File “/Users/…/anaconda/lib/python3.5/site-packages/pip/commands/list.py”, line 164, in run self.output_package_listing(packages, options) File “/Users/…/anaconda/lib/python3.5/site-packages/pip/commands/list.py”, line 258, in output_package_listing logger.info(self.output_legacy(dist)) Message: ‘xlwt (1.1.2)’ Arguments: () Exception ignored in: <_io.TextIOWrapper name=‘<stdout>’ mode=‘w’ encoding=‘UTF-8’> BrokenPipeError: [Errno 32] Broken pipe