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How to get line count of a large file cheaply in Python?
...ed to get a line count of a large file (hundreds of thousands of lines) in python. What is the most efficient way both memory- and time-wise?
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What is the python “with” statement designed for?
I came across the Python with statement for the first time today. I've been using Python lightly for several months and didn't even know of its existence! Given its somewhat obscure status, I thought it would be worth asking:
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Python date string to date object
How do I convert a string to a date object in python?
7 Answers
7
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how to “reimport” module to python then code be changed after import
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For Python 2.x
reload(foo)
For Python 3.x
import importlib
import foo #import the module here, so that it can be reloaded.
importlib.reload(foo)
sh...
Character reading from file in Python
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Ref: http://docs.python.org/howto/unicode
Reading Unicode from a file is therefore simple:
import codecs
with codecs.open('unicode.rst', encoding='utf-8') as f:
for line in f:
print repr(line)
It's also possible to open files ...
Python “extend” for a dictionary
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a.update(b)
Latest Python Standard Library Documentation
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Can I use `pip` instead of `easy_install` for `python setup.py install` dependency resolution?
python setup.py install will automatically install packages listed in requires=[] using easy_install . How do I get it to use pip instead?
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Best way to format integer as string with leading zeros? [duplicate]
...ts ($cnt).
What the best way to translate this simple function from PHP to Python:
10 Answers
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Are nested try/except blocks in python a good programming practice?
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Your first example is perfectly fine. Even the official Python docs recommend this style known as EAFP.
Personally, I prefer to avoid nesting when it's not necessary:
def __getattribute__(self, item):
try:
return object.__getattribute__(item)
except AttributeErro...
What is the proper way to comment functions in Python?
Is there a generally accepted way to comment functions in Python? Is the following acceptable?
10 Answers
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