Python’s many ways of string formatting — are the older ones (going to be) deprecated?
Python has at least six ways of formatting a string:
Python
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
I have recently been learning Python and am dipping my hand into building a web-scraper. It’s nothing fancy at all; its only purpose is to get the data off of a betting website and have this data put into Excel.
How to delete a specific line in a file?
Let’s say I have a text file full of nicknames. How can I delete a specific nickname from this file, using Python?
Use a list of values to select rows from a Pandas dataframe
Let’s say I have the following Pandas dataframe:
Permanently add a directory to PYTHONPATH?
Whenever I use sys.path.append, the new directory will be added. However, once I close python, the list will revert to the previous (default?) values. How do I permanently add a directory to PYTHONPATH?
Are list-comprehensions and functional functions faster than “for loops”?
In terms of performance in Python, is a list-comprehension, or functions like map(), filter() and reduce() faster than a for loop? Why, technically, they run in a C speed, while the for loop runs in the python virtual machine speed?.
How to input a regex in string.replace?
I need some help on declaring a regex. My inputs are like the following:
Python subprocess readlines() hangs
The task I try to accomplish is to stream a ruby file and print out the output. (NOTE: I don’t want to print out everything at once)
Why does the expression 0 < 0 == 0 return False in Python?
Looking into Queue.py in Python 2.6, I found this construct that I found a bit strange:
How to print a single backslash?
When I write print('') or print("") or print("''"), Python doesn’t print the backslash symbol. Instead it errors for the first two and prints '' for the second. What should I do to print a backslash?