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retrieve links from web page using python and BeautifulSoup [closed]
...etrieve the links of a webpage and copy the url address of the links using Python?
16 Answers
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python multithreading wait till all threads finished
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In Python3, since Python 3.2 there is a new approach to reach the same result, that I personally prefer to the traditional thread creation/start/join, package concurrent.futures: https://docs.python.org/3/library/concurrent.futu...
Code for Greatest Common Divisor in Python [closed]
...port gcd
>>> gcd(20,8)
4
Source code from the inspect module in Python 2.7:
>>> print inspect.getsource(gcd)
def gcd(a, b):
"""Calculate the Greatest Common Divisor of a and b.
Unless b==0, the result will have the same sign as b (so that when
b is divided by it, th...
Python CSV error: line contains NULL byte
...o.write(data.replace('\x00', '')) be fo.write(data.replace(b'\x00', b''))? Python 3.6 here...
– Boern
Jan 8 '19 at 9:08
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show 3 more commen...
Replace console output in Python
I'm wondering how I could create one of those nifty console counters in Python as in certain C/C++-programs.
10 Answers
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Python : List of dict, if exists increment a dict value, if not append a new dict
... a dictionary, this is easy:
# This example should work in any version of Python.
# urls_d will contain URL keys, with counts as values, like: {'http://www.google.fr/' : 1 }
urls_d = {}
for url in list_of_urls:
if not url in urls_d:
urls_d[url] = 1
else:
urls_d[url] += 1
T...
How can I add new keys to a dictionary?
Is it possible to add a key to a Python dictionary after it has been created?
16 Answers
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Python recursive folder read
I have a C++/Obj-C background and I am just discovering Python (been writing it for about an hour).
I am writing a script to recursively read the contents of text files in a folder structure.
...
OAuth: how to test with local URLs?
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You can edit the hosts file on windows or linux
Windows : C:\Windows\System32\Drivers\etc\hosts
Linux : /etc/hosts
localhost name resolution is handled within DNS itself.
127.0.0.1 mywebsite.com
after you finish your tests you just comment the line ...
Why is it string.join(list) instead of list.join(string)?
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This was discussed in the String methods... finally thread in the Python-Dev achive, and was accepted by Guido. This thread began in Jun 1999, and str.join was included in Python 1.6 which was released in Sep 2000 (and supported Unicode). Python 2.0 (supported str methods including join) wa...