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[Solved][Python] ModuleNotFoundError: No module named 'cStringIO'

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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.

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[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.

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Using "json" module to write and load Json file in Python

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Introduction

Json format file is very easily to process, and many programming language support it. So this data format is quite suitable for joint access to a data and development between different programming languages.

Today I want to introduce how to use the Python package "json" to write and load a Json format file.

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Display the computer's OS and CPU core in Python

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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.

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[Python] Use enumerate() function to output index and element at the same time

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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.

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[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.

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