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In Python, what is the difference between “.append()” and “+= []”?
...or your case the only difference is performance: append is twice as fast.
Python 3.0 (r30:67507, Dec 3 2008, 20:14:27) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import timeit
>>> timeit.Timer('s.append("somethi...
Getting the IP address of the current machine using Java
...e effect of UDP "connected" state) that works reliably in both Windows and Linux across versions and distributions.
So, this method will give the local address that would be used to connect to the specified remote host. There is no real connection established, hence the specified remote ip can be ...
java.lang.NoClassDefFoundError: Could not initialize class XXX
...ing) and still found nothing.
So, I try to find the difference between the linux machine and my computer. Then I found that this problem happens only when several threads run in one process(By the way, the linux machine has double cores and double processes). That means if there are two tasks(both u...
Writing string to a file on a new line every time
...ing every time I call file.write() . What's the easiest way to do this in Python?
10 Answers
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How to return a value from __init__ in Python?
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Where is new here? Is new implicit in Python? I assumed Python's semantics were different from Java and the other languages that do use this word.
– cs95
Jul 20 '16 at 6:06
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How to construct a set out of list items in python?
I have a list of filenames in python and I would want to construct a set out of all the filenames.
6 Answers
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How to remove stop words using nltk or python
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There's a very simple light-weight python package stop-words just for this sake.
Fist install the package using:
pip install stop-words
Then you can remove your words in one line using list comprehension:
from stop_words import get_stop_words
filtered_word...
Convert floating point number to a certain precision, and then copy to string
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With Python < 3 (e.g. 2.6 [see comments] or 2.7), there are two ways to do so.
# Option one
older_method_string = "%.9f" % numvar
# Option two
newer_method_string = "{:.9f}".format(numvar)
But note that for Python versions ...
Iterate over object attributes in python
I have a python object with several attributes and methods. I want to iterate over object attributes.
8 Answers
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How to get method parameter names?
Given the Python function:
15 Answers
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