How to know key exists in Python? Import the os module: To get an environment variable: To set an environment variable: Answer Check If Key Exists using the Inbuilt method keys() Check If Key Exists using if and in Check If Key Exists using has_key() method Check If Key Exists using get()
Tag: python
How can I scrape an apple HTML page using python?
I am trying to scrape the h2 tag below from the apple page in the python 3.10.6 code further below. I can see the h2 tag on the page; but my python running on PyCharm 2022.1.4 is unable to scrape it. episode-shelf-header is a unique class in the html code on this page. I did search for a solution to
Pandas join rows of text and output as a new variable
Given following DF Is it possible for Pandas to join all rows, give a new line and return the result as a variable? Final output: Variable n: I have explored str.cat() but seem like the separator do not allow a n. Answer Use as many n newlines as you like.
Convert string list values of dictionary into ranked integers, but with their ranks + 1 and descending
Additionally, if the original dictionary has only one value, it gets a score of 1. For example, a dict that looks like this: Would become the following: This is a start for a dictionary with 2 keys, not including the 1-value situation: That’s what I want for the values, now I just need to set the keys o…
Is it safe to kill the Python process when writing to a file?
When opening a file for writing, is there any point in time where the file contents would be erased if the process was killed? Here is the code used: Answer It’s unsafe. Kill the process between the open(“file.txt”, “w”) and the point stuff starts getting written, and the file wi…
PythonPandasDataFrameCSV file: issue with csv file?
I’m a beginner in python programming. I was doing a school project with pandas with csv file and when I print the table it shows not the result I wanted This is the actual csv file i created csv file i created I hope anyone can help me with this. Answer To conveniently print your table, use the methods …
subprocess.run only accepting first argument
Using Python 3.10.6 trying to pass an argument to a command line opened via subprocess.run, I’ve tried toggling shell=True/False, as well as passing the second argument with the input variable, no luck. here is the relevant code: [‘cmd’, ‘echo hello’] Microsoft Windows [Version 1…
Check if the last 2 messages were sent by the same person in discord.py
I’d like to know if it’s possible to check if the last 2 messages in a channel (either the specific channel or the whole server, doesn’t really matter for my purpose) were sent by the same person in discord.py, e.g. something like this: Thanks. Answer You can get the channel of the message, …
How to use boolean on list correctly?
(result True) I want result become False if only one in list A or B have small value than a or b. In this code B[1] < b[1] (5 >= 10) result I expect is False but is output True Answer From official doc: The comparison uses lexicographical ordering: first the first two items are compared, and if they dif…
Clicked on element that has x-click with Python Selenium but it do not redirect
I am trying to scrape the url given below with python selenium. https://www.rtilinks.com/?5b5483ba2d=OUhWbXlXOGY4cEE0VEtsK1pWSU5CdEJob0hiR0xFNjN2M252ZXlOWnp0RC9yaFpvN3ZNeW9SazlONWJSTWpvNGNpR0FwWUZwQWduaXdFY202bkcrUHAybkVDc0hMMk9EWFdweitsS0xHa0U9 here is my code After running through this code I should be redi…