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When to use pip requirements file versus install_requires in setup.py?
I'm using pip with virtualenv to package and install some Python libraries.
4 Answers
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UnicodeDecodeError, invalid continuation byte
...>>> u'\xe9'.encode('latin-1')
b'\xe9'
(Note, I'm using a mix of Python 2 and 3 representation here. The input is valid in any version of Python, but your Python interpreter is unlikely to actually show both unicode and byte strings in this way.)
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How to securely store access token and secret in Android?
...ed device we easily can read and modify all applications' SharedPrefereces xml's. So tokens should expire relatively frequent. But even if a token expires every hour, newer tokens can still be stolen from SharedPreferences. Android KeyStore should be used for long term storage and retrieval of crypt...
java.lang.OutOfMemoryError: Java heap space in Maven
... Do you update the <configuration> tag only within your parent pom.xml?
– Kevin Meredith
Sep 21 '12 at 16:16
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Finding all possible permutations of a given string in python
I have a string. I want to generate all permutations from that string, by changing the order of characters in it. For example, say:
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Django: How to completely uninstall a Django app?
...te the app directory from your project directory or other location on your PYTHONPATH where it resides.
(optional) If the app stored media files, cache files, or other temporary files somewhere, you may want to delete those as well. Also be wary of lingering session data that might be leftover from ...
0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
... greater.
Here's what the double precision value gets rounded to (using a Python interpreter):
>>> "%.55f" % 0.1
'0.1000000000000000055511151231257827021181583404541015625'
And here's the single precision value:
>>> "%.55f" % numpy.float32("0.1")
'0.100000001490116119384765625...
Clear text from textarea with selenium
...rom selenium.webdriver.common.keys import Keys
#...your code (I was using python 3)
driver.find_element_by_id('foo').send_keys(Keys.CONTROL + "a");
driver.find_element_by_id('foo').send_keys(Keys.DELETE);
share
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How to duplicate virtualenv
...e. A requirements file is basically a file that contains a list of all the python packages you want to install (or have already installed in case of file generated by pip), and what versions they're at.
To generate a requirements file, go into your original virtualenv, and run:
pip freeze > req...
Is there any difference between “foo is None” and “foo == None”?
... a special builtin method that determines how == is handled when used on a Python object. Here we have overridden it so that when == is used on objects of type Foo it always returns true. There isn't an equivalent method for the is operator and so the behaviour of is cannot be changed in the same wa...