setup.py fails under some conditions due to encoding issues

[alexntt]

Mostly creating this so if someone has the same problem this will show up in Google

Collecting SOAPpy (from servicenow->nms-servicenow-replica==0.0.1a1480522484)
  Downloading SOAPpy-0.12.22.zip (172kB)
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File \"<string>\", line 1, in <module>
      File \"/tmp/pip-build-fuwjy0sg/SOAPpy/setup.py\", line 17, in <module>
        +'\\n'+read('CHANGES.txt')
      File \"/tmp/pip-build-fuwjy0sg/SOAPpy/setup.py\", line 12, in read
        os.path.join('.', *rnames)
      File \"/usr/lib64/python3.4/encodings/ascii.py\", line 26, in decode
        return codecs.ascii_decode(input, self.errors)[0]
    UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 842: ordinal not in range(128)

We have this issue when running pip3 install soappy through Ansible executing in our Jenkins server, we have found out that adding:

export LANG="en_US.UTF-8"
export LANGUAGE="en_US:en"

to Ansible's environment fixes the issue, previously Jenkins had LANG=C.UTF-8 and no LANGUAGE set