I am trying to install simple-salesforce==0.72.2 via pip and get this error on CentOS 7.
pip install simple-salesforce==0.72.2
Collecting simple-salesforce==0.72.2
Downloading simple_salesforce-0.72.2-py2.py3-none-any.whl
Requirement already satisfied: requests[security] in ./python/lib/python2.7/site-packages (from simple-salesforce==0.72.2)
Requirement already satisfied: pyOpenSSL>=0.13 in ./python/lib/python2.7/site-packages (from requests[security]->simple-salesforce==0.72.2)
Requirement already satisfied: ndg-httpsclient in ./python/lib/python2.7/site-packages (from requests[security]->simple-salesforce==0.72.2)
Requirement already satisfied: pyasn1 in ./python/lib/python2.7/site-packages (from requests[security]->simple-salesforce==0.72.2)
Requirement already satisfied: cryptography>=0.7 in ./python/lib/python2.7/site-packages (from pyOpenSSL>=0.13->requests[security]->simple-salesforce==0.72.2)
Requirement already satisfied: six>=1.5.2 in ./python/lib/python2.7/site-packages (from pyOpenSSL>=0.13->requests[security]->simple-salesforce==0.72.2)
Requirement already satisfied: idna>=2.0 in ./python/lib/python2.7/site-packages (from cryptography>=0.7->pyOpenSSL>=0.13->requests[security]->simple-salesforce==0.72.2)
Requirement already satisfied: setuptools in ./python/lib/python2.7/site-packages (from cryptography>=0.7->pyOpenSSL>=0.13->requests[security]->simple-salesforce==0.72.2)
Exception:
Traceback (most recent call last):
File "/home/points2shop/python/lib/python2.7/site-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/home/points2shop/python/lib/python2.7/site-packages/pip/commands/install.py", line 335, in run
wb.build(autobuilding=True)
File "/home/points2shop/python/lib/python2.7/site-packages/pip/wheel.py", line 749, in build
self.requirement_set.prepare_files(self.finder)
File "/home/points2shop/python/lib/python2.7/site-packages/pip/req/req_set.py", line 380, in prepare_files
ignore_dependencies=self.ignore_dependencies))
File "/home/points2shop/python/lib/python2.7/site-packages/pip/req/req_set.py", line 666, in _prepare_file
check_dist_requires_python(dist)
File "/home/points2shop/python/lib/python2.7/site-packages/pip/utils/packaging.py", line 48, in check_dist_requires_python
feed_parser.feed(metadata)
File "/usr/lib64/python2.7/email/feedparser.py", line 156, in feed
self._input.push(data)
File "/usr/lib64/python2.7/email/feedparser.py", line 99, in push
data, self._partial = self._partial + data, ''
TypeError: cannot concatenate 'str' and 'NoneType' objects
What could be wrong? The same command worked on other machines with same configuration.