Building ‘_imagingft’ extension error command ‘cc’ failed with exit status 1
November 3, 2015
This error is due to freetype header missing. _imagingft.c:73:10: fatal error: ‘freetype/fterrors.h’ file not found #include <freetype/fterrors.h> ^ 1 error generated. error: command ‘cc’ failed with exit status 1 First, verify freetype is installed. With brew: brew install freetype If freetype installed, warning message shows: Warning: freetype-2.5.5 already installed Next to fixed the issue, is […]
Pip Install error: invalid command ‘bdist_wheel’ Mac Os
November 3, 2015
Install the wheel package first: pip install wheel If requirement already satisfied, you will see: Requirement already satisfied (use –upgrade to upgrade) Then, you should update your setuptools: pip install setuptools –upgrade Run again pip install, it should works now!
python validate string allowed only spaces, alphabet and numbers
September 29, 2015
Using pattern matching, this is not hard to achieve. To check that each character matches your requirements Regular expression “^[a-zA-Z0-9_]*$” With spaces checking: “^[a-zA-Z0-9_ ]*$” Code example: if allow_special_char == False: import re if not re.match(“^[a-zA-Z0-9_ ]*$”, gname): print “Invalid” Regular expression refer from http://stackoverflow.com/a/336220/1903116 reference: http://stackoverflow.com/questions/19970532/how-to-check-a-string-for-a-special-character
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