Python

Use Python pacakge Pillow to convert font files to PNG images

Clay
2020-08-262020-08-26
Packages, Python

Introduction

Today, I need to plot font files in PNG format and save it, which sounds like a rare requirement. After browsing on the Internet, I found that it can use ImageFont module of Python package Pillow to solved.

At the beginning, I wanted to use the Python package fontTools to solve the problem, but later I found that the Imagefont module in Pillow was better.

[Python] Use map() function to iterate the parameter list to a function

Clay
2020-08-162021-08-03
Packages, Python

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

Clay
2020-08-152021-08-03
Packages, Python

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.

[Python] Use Python to read and write csv file

Clay
2020-08-092021-08-02
Packages, Python

The csv file (Comma-Separated Values) is a very convenient format for displaying data. It is a plain text format for storing table data. This article mainly introduces how to read and write by Python.

[Python] Use PyCharm to connect to the Python interpreter of the remote server

Clay
2020-08-082021-08-02
PyCharm, Python

There is a most important thing I want to remind before I start: to use the Python interpreter of remote server requires the professional version of PyCharm. The community version has no way to configure the remote Python interpreter. (If I make a mistake, please feel free to tell me.)

[Machine Learning][Python] The simplest object recognition package: ImageAI

Clay
2020-08-052021-08-01
Machine Learning, Packages, Python

It needs to be stated in advance that the teaching of this article is learning from: https://towardsdatascience.com/object-detection-with-10-lines-of-code-d6cb4d86f606. You can also go directly to that website to learn.

[PyTorch] How to check the model state is “train()” or “eval()”

Clay
2020-07-062023-02-17
Machine Learning, Python, PyTorch

Today when I reading the document of the “Transformers” package which Hugging Face developed, I suddenly discovered the model I build, its state is “eval()”, not “train()”. It seems that as long as we use “from_pretrained()” method is the default state “eval()”.

[Solved][PyTorch] RuntimeError: bool value of Tensor with more than one value is ambiguous

This is very common error message in PyTorch.

RuntimeError: bool value of Tensor with more than one value is ambiguous

[PyTorch] How to check which GPU device our data used

Clay
2020-05-152021-07-05
Machine Learning, Python, PyTorch

When I using PyTorch to train a model, I often use GPU_A to train the model, save model. But if I load the model I saved to test some new data, I always put the new data in a different GPU, we called it GPU_B.

Easy Python Tutorial Speed Run —— Only one hour

Clay
2020-05-142021-07-05
Python, Python Tutorial

Introduction

Python is a simple and beautiful program language. Today I will record how to learn Python quickly. The cost time, I think it’s just only one hour.

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