UnicodeDecodeError installing in 3.6.8

[cccaballero]

I have recived a UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 361: ordinal not in range(128) error when installing using pip and Python 3.6.8. there is the trace:

ERROR: Command errored out with exit status 1:
 command: /home/devikhxr/virtualenv/public_comohay.com/3.6/bin/python3.6_bin -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-68hcpkqo/unicode-slugify/setup.py'"'"'; __file__='"'"'/tmp/pip-install-68hcpkqo/unicode-slugify/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-2f7x6_ul
     cwd: /tmp/pip-install-68hcpkqo/unicode-slugify/
Complete output (7 lines):
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/pip-install-68hcpkqo/unicode-slugify/setup.py", line 7, in <module>
    long_description=open('README.md').read(),
  File "/home/devikhxr/virtualenv/public_comohay.com/3.6/lib64/python3.6/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 361: ordinal not in range(128)
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.