UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 1065: ordinal not in range(128)

On setup:

P3.4

Collecting python-dotenv (from -r requirements.txt (line 4))
  Downloading python-dotenv-0.6.2.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-v231dm4e/python-dotenv/setup.py", line 5, in <module>
        readme = readme_file.read()
      File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode
        return codecs.ascii_decode(input, self.errors)[0]
    UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 1065: ordinal not in range(128)
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-v231dm4e/python-dotenv/

P3.5

Collecting python-dotenv (from -r requirements.txt (line 4))
  Downloading python-dotenv-0.6.2.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-s94tagti/python-dotenv/setup.py", line 5, in <module>
        readme = readme_file.read()
      File "/usr/lib/python3.5/encodings/ascii.py", line 26, in decode
        return codecs.ascii_decode(input, self.errors)[0]
    UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 1065: ordinal not in range(128)
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-s94tagti/python-dotenv/