CentOS 7 installs Python 3.6, pip3 error problem

After installing Python 3.6.3 on CentOS 7, the following errors occurred when using the pip command Traceback (most recent call last): File "/usr/Python3.6.3/lib/python3.6/site-packages/pip/basecommand.py", line 215, in main status = self.run(options, args) File "/usr/Python3.6.3/lib/python3.6/site-packages/pip/commands/search.py", l ...

Posted on Mon, 13 Jul 2020 12:30:51 -0400 by ionik

python3 implements mysql export excel

I. Preparations Python Tool Library Installation xlwt and xlrd Installation under 1.1win7 1.1.1 Method 1: Download and Install 1. From http://pypi.python.org/pypi/xlwt Download xlwt-1.0.0.tar.gz; 2. From http://pypi.python.org/pypi/xlrd Download xlrd-0.9.4.tar.gz; 3. Unzip the package; 4. Run under win7. [plain] view plain copy cmd ...

Posted on Thu, 02 Jul 2020 11:05:12 -0400 by seventheyejosh

python3 implements mysql export excel

I. Preparations Python Tool Library Installation xlwt and xlrd Installation under 1.1win7 1.1.1 Method 1: Download and Install 1. From http://pypi.python.org/pypi/xlwt Download xlwt-1.0.0.tar.gz; 2. From http://pypi.python.org/pypi/xlrd Download xlrd-0.9.4.tar.gz; 3. Unzip the package; 4. Run under win7. [plain] view plain copy cmd ...

Posted on Thu, 02 Jul 2020 11:04:09 -0400 by jlp09550

A course of neural network based on DGL library Diagram -- basic drawing operation

Recently contacted with graph neural network, I feel that this device can provide multi granularity perspective. After abstracting the research object, we can classify the nodes, the edges and the whole graph. Graph neural network provides the ability to describe specific objects with multi granularity. ...

Posted on Sat, 27 Jun 2020 20:46:38 -0400 by bigphpn00b

Selenium+Tesseract cracking login verification code

preface The type of login verification code I cracked is the type of mathematical formula, i.e... does it look simple, but Tesseract's recognition rate of this kind of picture is also very low. If I want to improve the recognition rate in the later stage, I think one is to reduce the noise and sharpen the picture, and the other is to train Tess ...

Posted on Thu, 25 Jun 2020 00:25:22 -0400 by tjhilder

Tired of playing games? Paddle gesture recognition play a new game!

PaddlePaddle realizes gesture recognition, playing and eating beans! Article directory: 1. Gesture data collection 2. PaddleX training model 3. Test gesture recognition model 4. Test game gesture control 5. Success~ 1. Gesture data collection: 2. PaddleX training model 2.1 defining data sets 2.2 ...

Posted on Tue, 23 Jun 2020 00:00:54 -0400 by ac1dsp3ctrum

Detailed derivation of codeforces round (Div. 2) e. memory and casinos

Title Link What's more, a gambler is in nnn casinos. He has PIP in every casino_ The winning rate of IPI, if it wins, it will go to the right, if it loses, it will go to the left. If it reaches casino 000 or n+1n+1n+1, it will be quite a gamble out. Defining the ruling range [l,r][l,r][l,r], that is, i ...

Posted on Sun, 21 Jun 2020 00:40:47 -0400 by DavidT

Building and basic use of yolov3 target detection environment

1. Construction of keras environment Install tensorflow first, and then install keras (note that the version of tensorflow and keras should match) Reduce the version of keras, install the new version directly, and the old version will be uninstalled automatically pip install keras==2.2.5 -i https://pypi ...

Posted on Thu, 18 Jun 2020 01:55:22 -0400 by tomhath

kalibr installation and compilation under Ubuntu 18.04 + ROS melody

kalibr installation and compilation under Ubuntu 18.04 + ROS melody Attention & emphasis: any course must be browsed first, and there is a general idea in mind. Follow the process step by step, and you can have an early warning before falling into the pit Recommended tutorials: Joint calibration o ...

Posted on Sat, 13 Jun 2020 00:35:06 -0400 by WhiteCube

Python zero basic programming - 09 practical cryptology chapter - encryption and decryption of classical encryption algorithm

abstract Book to previous: 1-Zero basic programming -- Python basic 2-Zero basic programming: basic theory of cryptography In the previous part, we shared the basic theory of cryptography. Starting from Morse code, we analyzed Caesar encryption, transposition encryption, digital multiplication en ...

Posted on Thu, 11 Jun 2020 22:57:56 -0400 by Zaxnyd