crontab Failed to import the site module - python-3.x

Question

I want crontab to run the python script for a public welfare project.
I can successfully run the script in Pycharm.
When I run it with crontab, there is an error.
Environment: Mac OS, python3.5
After I type 'crontab -e', it shows that:
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/Users/yy/anaconda/bin/python3:/Users/yy/anaconda/bin/
32 14 * * * PATH=$PATH:/Users/yy/anaconda/bin/ cd /Users/yy/PycharmProjects/selenium_test/ && /Users/yy/anaconda/bin/python3 /Users/yy/PycharmProjects/selenium_test/selenium_test.py >> /Users/yy/PycharmProjects/selenium_test/log.txt
I got an error as follows in the /var/mail/username:
From yy#YY.local Thu Jun 8 14:32:00 2017
Return-Path: <yy#YY.local>
X-Original-To: yy
Delivered-To: yy#YY.local
Received: by YY.local (Postfix, from userid 501)
id A7F1F38FFFCC; Thu, 8 Jun 2017 14:32:00 -0500 (CDT)
From: yy#YY.local (Cron Daemon)
To: yy#YY.local
Subject: Cron <yy#YY> PATH=$PATH:/Users/yy/anaconda/bin/ cd /Users/yy/PycharmProjects/selenium_test/ && /Users/yy/anaconda/bin/python3 /Users/yy/PycharmProjects/selenium_test/selenium_test.py >> /Users/yy/PycharmProjects/selenium_test/log.txt
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/Users/yy/anaconda/bin/python3:/Users/yy/anaconda/bin/>
X-Cron-Env: <LOGNAME=yy>
X-Cron-Env: <USER=yy>
X-Cron-Env: <HOME=/Users/yy>
Message-Id: <20170608193200.A7F1F38FFFCC#YY.local>
Date: Thu, 8 Jun 2017 14:32:00 -0500 (CDT)
Failed to import the site module
Traceback (most recent call last):
File "/Users/yy/anaconda/lib/python3.5/site.py", line 567, in <module>
main()
File "/Users/yy/anaconda/lib/python3.5/site.py", line 550, in main
known_paths = addsitepackages(known_paths)
File "/Users/yy/anaconda/lib/python3.5/site.py", line 327, in addsitepackages
addsitedir(sitedir, known_paths)
File "/Users/yy/anaconda/lib/python3.5/site.py", line 206, in addsitedir
addpackage(sitedir, name, known_paths)
File "/Users/yy/anaconda/lib/python3.5/site.py", line 162, in addpackage
for n, line in enumerate(f):
File "/Users/yy/anaconda/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 0xe7 in position 127: ordinal not in range(128)
I spent two hours on this error.
However, No solutions work...
Please help.
Thanks!
#
I use python3.5, so the default encoding is utf-8. The
UnicodeDecodeError is strange...

Answer 1

The problem is about encoding.
The default of Python3.5 is utf-8.
However, some packages I installed is encoded with Unicode.
I solve the problem by modifying the site.py file in path=/Users/user_name/anaconda/lib/python3.5/site.py.
Line 158:
f = open(fullname, "rb") -> f = open(fullname, "rb")
Line 163:
if line.startswith("#"): -> if line.startswith(b"#"):
Line 166:
if line.startswith(("import ", "import\t")): -> if line.startswith((b"import ", b"import\t")):
Line 170:
dir, dircase = makepath(sitedir, line) -> dir, dircase = makepath(sitedir, str(line))
I don't think it's a good idea to modify the "site.py" in anaconda...
But this fix the problem.
Hope it will be helpful.