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Because some syntax uses of Python 2.x and 3.x are different, you will encounter the need to switch versions when writing and using Python programs. The following describes pyenv, a tool for switching Python versions. Install pyenv Take mac as an example. You need to install brew first. If you don't, you need to install brew and pyenv first. No ...

1, Create a python virtual environment and install django 2, Create a django project Command: Django admin startproject project name eg: G:\django_learn>workon testvir (testvir) G:\django_learn>django-admin startproject django_learn After execution, a django project will be created successfully and the directory will be generated --- djan ...

Preface Remember the fear of being dominated by bat.It's really hard to write bat scripts than shell scripts. Now that you understand these advanced languages, such as java js, it's easy to understand shell s.Learn simple grammar, look at scripts in familiar applications like tomcat and nacos, and learn other people's skills. It's about getting ...

1, Install gitlab Reference blog Gitlab installation and application of continuous integration Install gitlab, and perform the basic operation of the third and remote library 2, Mail verification registration Email reminders can be used to register users and need to be verified by email. They will also be reminded when gitlab uploads code or d ...

There are two libraries available for krb5 API: MIT and Heimdal. The APIs of the two libraries are different. It is basically OK for one client's API to connect to the otherThe two kadmin libraries in API are completely incompatible. From the kadmin application tools of MIT and Heimdal, it can be seen that it is not successful to connect the k ...

Dynamically update Linux system password and send SMS to remind Sometimes we may need higher security. As the mainstream operating system of the server, Linux needs to change the root password of the system account frequently to ensure the security of the whole system. The importance of the password i ...

Analysis of seven sorting algorithms and implementation of C source code Selection sort First of all, initialize the first element of the array, the outer loop traverses the sorted array in turn, the inner loop traverses the array again, until the end of the array. If the elements need to be exchang ...

Although there is a sort() function in python that can easily sort lists and tuples in one sentence, in order to better understand the algorithm and data structure, Hanzhou has implemented six commonly used sorting algorithms in Python. The first three algorithms have time complexity of O(n^2) and the l ...

Original author: Li Haiqiang, from the retail big data team of Ping An Bank ​ Preface As a data engineer, you may encounter many ways to start PySpark. You may not understand what they have in common, what differences they have, and what impact different methods have on program development and deploymen ...

Go back to: Linux series Shell series Awk series Process control statement Note: statement blocks in awk have no scope and are global variables. if (condition) statement [ else statement ] expr1?expr2:expr3 while (condition) statement do statement while (condition) for (expr1; expr2; expr3) statement for (var in array) statement break co ...