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Create a “with” block on several context managers? [duplicate]
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In Python 2.7 and 3.1 and above, you can write:
with A() as X, B() as Y, C() as Z:
do_something()
This is normally the best method to use, but if you have an unknown-length list of context managers you'll need one of the ...
Write to UTF-8 file in Python
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Read the following: http://docs.python.org/library/codecs.html#module-encodings.utf_8_sig
Do this
with codecs.open("test_output", "w", "utf-8-sig") as temp:
temp.write("hi mom\n")
temp.write(u"This has ♭")
The resulting file is UTF-8 with the...
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...
Why does Chrome incorrectly determine page is in a different language and offer to translate?
...anguage is deprecated and Google says they ignore lang
<html lang="en" xml:lang="en" xmlns= "http://www.w3.org/1999/xhtml">
<meta charset="UTF-8">
<meta name="google" content="notranslate">
<meta http-equiv="Content-Language" content="en">
If that doesn't work, you can alw...
How to call a Parent Class's method from Child Class in Python?
When creating a simple object hierarchy in Python, I'd like to be able to invoke methods of the parent class from a derived class. In Perl and Java, there is a keyword for this ( super ). In Perl, I might do this:
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How to get the PATH environment-variable separator in Python?
...aracter. For Windows it's ';' , for Linux it's ':' . Is there a way in Python to get which character to split on?
5 Ans...
Python Empty Generator Function
In python, one can easily define an iterator function, by putting the yield keyword in the function's body, such as:
9 Answ...
How to index into a dictionary?
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Dictionaries are unordered in Python versions up to and including Python 3.6. If you do not care about the order of the entries and want to access the keys or values by index anyway, you can use d.keys()[i] and d.values()[i] or d.items()[i]. (Note that ...
How do I parallelize a simple Python loop?
...robably a trivial question, but how do I parallelize the following loop in python?
13 Answers
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Are tuples more efficient than lists in Python?
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This answer shows us that Python acknowledges tuple constants. That's good to know! But what happens when trying to build a tuple or a list from variable values?
– Tom
Aug 13 '15 at 14:40
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