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Import a file from a subdirectory?
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Take a look at the Packages documentation (Section 6.4) here: http://docs.python.org/tutorial/modules.html
In short, you need to put a blank file named
__init__.py
in the "lib" directory.
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Permanently add a directory to PYTHONPATH?
... sys.path.append , the new directory will be added. However, once I close python, the list will revert to the previous (default?) values. How do I permanently add a directory to PYTHONPATH ?
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Regex to match a digit two or four times
...e -- but apparently the asker didn't...).
– Jean-François Corbett
Apr 30 at 11:24
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Using multiple arguments for string formatting in Python (e.g., '%s … %s')
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Mark Cidade's answer is right - you need to supply a tuple.
However from Python 2.6 onwards you can use format instead of %:
'{0} in {1}'.format(unicode(self.author,'utf-8'), unicode(self.publication,'utf-8'))
Usage of % for formatting strings is no longer encouraged.
This method of string...
Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
...jp/cgi-bin/scat.rb/ruby/ruby-talk/380637
– Matt Briançon
Aug 16 '11 at 16:17
4
Correct explanati...
mysql_config not found when installing mysqldb python interface
I am trying to get a Python script to run on the linux server I'm connected to via ssh. The script uses mysqldb. I have all the other components I need, but when I try to install mySQLdb via setuptools like so:,
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Is there a good reason to use upper case for SQL keywords? [closed]
...r language. The same is not true anywhere near as often for languages like Python or C++; yes, their code does sometimes appear in those places, but it's not routinely done the way it is with SQL code.
Also, the reader will commonly be using a highlighter that only knows a subset of the keywords yo...
How do you use script variables in psql?
...of uses, especially within the context of a web application framework like Python Flask, this is the best solution for reusing complex calculated values within a single query.
– Will
Oct 21 '15 at 17:07
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Resolve promises one after another (i.e. in sequence)?
Consider the following code that reads an array of files in a serial/sequential manner. readFiles returns a promise, which is resolved only once all files have been read in sequence.
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Convert base-2 binary number string to int
...y number:
>>> int('11111111', 2)
255
Here is documentation for python2, and for python3.
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