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Can you change what a symlink points to after it is created?
...ystem call to unlink() before symlink(). Below, the output of strace on my linux box proving it:
$ strace -o /tmp/output.txt ln -s -f .bash_aliases test
$ grep -C3 ^unlink /tmp/output.txt
lstat64("test", {st_mode=S_IFLNK|0777, st_size=7, ...}) = 0
stat64(".bash_aliases", {st_mode=S_IFREG|0644, st_...
Send file using POST from a Python script
Is there a way to send a file using POST from a Python script?
8 Answers
8
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Delete column from pandas DataFrame
...e del df.column_name work simply as the result of syntactic limitations in Python. del df[name] gets translated to df.__delitem__(name) under the covers by Python.
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Single vs double quotes in JSON
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JSON syntax is not Python syntax. JSON requires double quotes for its strings.
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How to calculate cumulative normal distribution?
I am looking for a function in Numpy or Scipy (or any rigorous Python library) that will give me the cumulative normal distribution function in Python.
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Unexpected results when working with very big integers on interpreted languages
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Python works:
>>> sum(x for x in xrange(1000000000 + 1))
500000000500000000
Or:
>>> sum(xrange(1000000000+1))
500000000500000000
Python's int auto promotes to a Python long which supports arbitrary pre...
Strip HTML from strings in Python
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I always used this function to strip HTML tags, as it requires only the Python stdlib:
For Python 3:
from io import StringIO
from html.parser import HTMLParser
class MLStripper(HTMLParser):
def __init__(self):
super().__init__()
self.reset()
self.strict = False
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Convert a python 'type' object to a string
I'm wondering how to convert a python 'type' object into a string using python's reflective capabilities.
5 Answers
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Extracting text from HTML file using Python
I'd like to extract the text from an HTML file using Python. I want essentially the same output I would get if I copied the text from a browser and pasted it into notepad.
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Coroutine vs Continuation vs Generator
...of where you'd use coroutines, but here's my best try. Take this (made up) Python code as an example.
def my_coroutine_body(*args):
while True:
# Do some funky stuff
*args = yield value_im_returning
# Do some more funky stuff
my_coro = make_coroutine(my_coroutine_body...