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Writing a list to a file with Python
...', 'w') as f:
for item in my_list:
f.write("%s\n" % item)
In Python 2, you can also use
with open('your_file.txt', 'w') as f:
for item in my_list:
print >> f, item
If you're keen on a single function call, at least remove the square brackets [], so that the strings...
Is there a way to perform “if” in python's lambda
In python 2.6 , I want to do:
16 Answers
16
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Why is parenthesis in print voluntary in Python 2.7?
In Python 2.7 both the following will do the same
4 Answers
4
...
Convert python datetime to epoch with strftime
...
If you want to convert a python datetime to seconds since epoch you could do it explicitly:
>>> (datetime.datetime(2012,04,01,0,0) - datetime.datetime(1970,1,1)).total_seconds()
1333238400.0
In Python 3.3+ you can use timestamp() instead:...
How do I use method overloading in Python?
I am trying to implement method overloading in Python:
15 Answers
15
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Python `if x is not None` or `if not x is None`?
...
There's no performance difference, as they compile to the same bytecode:
Python 2.6.2 (r262:71600, Apr 15 2009, 07:20:39)
>>> import dis
>>> def f(x):
... return x is not None
...
>>> dis.dis(f)
2 0 LOAD_FAST 0 (x)
3 LOAD_CONST...
Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3 [duplicate]
...
In Python 3, dict.values() (along with dict.keys() and dict.items()) returns a view, rather than a list. See the documentation here. You therefore need to wrap your call to dict.values() in a call to list like so:
v = list(d.va...
How do you read a file into a list in Python? [duplicate]
...en find the mean, standard deviation, etc. without using the easy built-in Python tools.
8 Answers
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Python, Unicode, and the Windows console
...y characters. What's the best way around this? Is there any way I can make Python automatically print a ? instead of failing in this situation?
...
Python's time.clock() vs. time.time() accuracy?
Which is better to use for timing in Python? time.clock() or time.time()? Which one provides more accuracy?
16 Answers
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