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How to join components of a path when you are constructing a URL in Python
...th a slash which signifies that it already begins at the website root.
On Python 2, you have to do
from urlparse import urljoin
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How to activate virtualenv?
... creating a folder and cd'ing into it:
$ virtualenv venv --distribute
New python executable in venv/bin/python
Installing distribute.........done.
Installing pip................done.
$ source venv/bin/activate
(venv)$ python
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Calling a function of a module by using its name (a string)
...o go about calling a function given a string with the function's name in a Python program. For example, let's say that I have a module foo , and I have a string whose content is "bar" . What is the best way to call foo.bar() ?
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Scripting Language vs Programming Language [closed]
...ed and/or recompiled at runtime)
Pascal
...and then you have things like Python that sit in both camps: Python is widely used without a compilation step, but the main implementation (CPython) does that by compiling to bytecode on-the-fly and then running the bytecode in a VM, and it can write that...
Determining Whether a Directory is Writeable
What would be the best way in Python to determine whether a directory is writeable for the user executing the script? Since this will likely involve using the os module I should mention I'm running it under a *nix environment.
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Python Mocking a function from an imported module
...new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f16134281%2fpython-mocking-a-function-from-an-imported-module%23new-answer', 'question_page');
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How can I find the first occurrence of a sub-string in a python string?
...s.rindex(t) #returns: Same as index, but searches right to left
Source: Python: Visual QuickStart Guide, Toby Donaldson
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Serializing class instance to JSON
...t of object types by default, all built-in types. List here: https://docs.python.org/3.3/library/json.html#encoders-and-decoders
One good solution would be to make your class inherit from JSONEncoder and then implement the JSONEncoder.default() function, and make that function emit the correct JSO...
Pelican 3.3 pelican-quickstart error “ValueError: unknown locale: UTF-8”
...There is an outstanding bug report related to this issue. It appears that Python makes some assumptions about the format of locale names that aren't universally valid. Explicitly setting these environment vars is basically just a workaround for that bug.
[Edit:] As @asmeurer correctly points out,...
How to convert an int to a hex string?
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Try:
"0x%x" % 255 # => 0xff
or
"0x%X" % 255 # => 0xFF
Python Documentation says: "keep this under Your pillow: http://docs.python.org/library/index.html"
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