Improve error message for invalid requirements files #6527
Description
A pip3 install command is failing with esoteric error message. I am running as the root user on Ubuntu.
- pip version: pip 9.0.1 from /usr/lib/python3/dist-packages (python 3.6)
- Python version: Python 3.6.7
- OS: Ubuntu
I have this:
WORKDIR /apps/datavana/moodwire/mwapi
RUN mkdir -p /pth/to/downloaded/files
RUN mkdir -p /interos/temp
ARG commit
ADD https://bitbucket.org/interos/datavana/raw/"$commit"/moodwire/mwapi/requirements.txt '/interos/temp/requirements.txt'
ADD https://bitbucket.org/interos/datavana/raw/"$commit"/moodwire/mwapi/constraints.txt '/interos/temp/constraints.txt'
# the ADD commands succeed
RUN pip3 install --cache-dir="/pth/to/downloaded/files" -r /interos/temp/requirements.txt -c /interos/temp/constraints.txtI get this error:
Step 28/92 : RUN pip3 install --cache-dir="/pth/to/downloaded/files" -r /interos/temp/requirements.txt -c /interos/temp/constraints.txt
---> Running in ac48ca1a7f93
Invalid requirement: '<html>'
Traceback (most recent call last):
File "/usr/share/python-wheels/packaging-17.1-py2.py3-none-any.whl/packaging/requirements.py", line 93, in __init__
req = REQUIREMENT.parseString(requirement_string)
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1632, in parseString
raise exc
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1622, in parseString
loc, tokens = self._parse( instring, 0 )
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1379, in _parseNoCache
loc,tokens = self.parseImpl( instring, preloc, doActions )
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 3395, in parseImpl
loc, exprtokens = e._parse( instring, loc, doActions )
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1379, in _parseNoCache
loc,tokens = self.parseImpl( instring, preloc, doActions )
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 3717, in parseImpl
return self.expr._parse( instring, loc, doActions, callPreParse=False )
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1379, in _parseNoCache
loc,tokens = self.parseImpl( instring, preloc, doActions )
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 3378, in parseImpl
loc, resultlist = self.exprs[0]._parse( instring, loc, doActions, callPreParse=False )
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 1383, in _parseNoCache
loc,tokens = self.parseImpl( instring, preloc, doActions )
File "/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl/pyparsing.py", line 2689, in parseImpl
raise ParseException(instring, loc, self.errmsg, self)
pyparsing.ParseException: Expected W:(abcd...) (at char 0), (line:1, col:1)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pip/req/req_install.py", line 82, in __init__
req = Requirement(req)
File "/usr/share/python-wheels/packaging-17.1-py2.py3-none-any.whl/packaging/requirements.py", line 97, in __init__
requirement_string[e.loc:e.loc + 8]))
pip._vendor.packaging.requirements.InvalidRequirement: Invalid requirement, parse error at "'<html>'"
The command '/bin/sh -c pip3 install --cache-dir="/pth/to/downloaded/files" -r /interos/temp/requirements.txt -c /interos/temp/constraints.txt' returned a non-zero code: 1
the error message is pretty bad - no matter what's going on.