[Solved][Python] ValueError: unsupported image mode ‘LA’
Problem
When I using Python PyQt5 module to show image, I got an error message:
ValueError: unsupported image mode 'LA'Python
Use Python to copy pictures to the clipboard
Introduction
Today I tried to develop my side project, I found I need a function to copy the screenshot picture to system clipboard, so I researched some methods.
Read More »Use Python to copy pictures to the clipboard[Solved][Python] ModuleNotFoundError: No module named ‘cStringIO’
Introduction
This is a record of the error message that I have encountered: When learning a sample code provided on the Internet, it was no problem for them to use the code to cut the picture and save it in the clipboard, but when I used their sample, it show the following error message:
ModuleNotFoundError: No module named 'cStringIO'
It looks like I lacked the cStringIO module, and finally I found the answer on StackOverflow.
Read More »[Solved][Python] ModuleNotFoundError: No module named ‘cStringIO’
[Python] Displaying Progress Bars Using the tqdm Package and Attempting to Implement Your Own Progress Bar
When we write Python code, sometimes we want to visualize the ‘progress bar’ to help us understand where our program is currently executing. For this need, instead of writing the progress bar ourselves, we can consider using a well-known progress bar module in Python—tqdm.
Read More »[Python] Displaying Progress Bars Using the tqdm Package and Attempting to Implement Your Own Progress BarDisplay the computer’s OS and CPU core in Python
Introduction
When we developing a Python project, sometimes we need to check which OS is user’s current operating system, because of different operating systems we may have to use different methods to implement the same function.
In my recent project, I also need to know how many CPU cores the user has to implement a multi-threaded program, so, by the way, it is recorded here.
simply put, the platform module can be used to test the user operating system, and the cpu_count() function in multiprocessing module can be used to calculate the number of CPU cores.
[Python] Use enumerate() function to output index and element at the same time
Introduction
enumerate() is a function often used in Python. Its usage is very simple, just only need use enumerate(iterable, start_index). The first parameter enters the iterable object, and the second parameter enters the first number to be counted （Calculate from 0 by default）.
Let’s take a look at a simple sample code.
Read More »[Python] Use enumerate() function to output index and element at the same time[Python] Using package pytube to download YouTube videos
Introduction
Various electronic entertainments of modern people are inseparable from YouTube, whether it is to follow dramas, query tutorial, watch funny videos … we will watch it on YouTube platform. Saying watching YouTube is the most important thing for modern people.
Sometimes, we will need to download videos from YouTube. Of course, this matter itself is likely to violate intellectual property rights, so our use is limited to teaching and non-commercial use. The downloaded video must be deleted within a certain period of time.
Read More »[Python] Using package pytube to download YouTube videos[Python] Use map() function to iterate the parameter list to a function
The use of map() function in Python is very simple, so simple that it hardly needs any explanation. However, the map() function is still used in many places, so it is still slightly recorded.
[Python] How to use “datetime” module to process dates
If we want to processing date and time using Python, the datetime module that comes to minds first. The datetime module encapsulates Python’s date-related processing very well, and I have used it a lot in crawlers.