Use Python's "MyCli" library to achieve efficient command line interaction
Use Python's "MyCli" library to achieve efficient command line interaction
Overview:
The command line is one of the most commonly used tools such as development and system administrators.However, the standard command line interface does not always provide a first -class user experience.In order to improve the efficiency and ease of use of command line interactions, we can use the "MyCli" library in Python.This article will introduce how to achieve efficient command line interactions through the "MyCli" library, and provide the necessary code and configuration description.
What is MyCli?
‘MyCli’ is a Python class library that can provide enhanced functions of MySQL and Mariadb command lines.Its goal is to make the command line tool more easy to use and efficient, and provide additional functions, such as automatic completion, grammar highlight, and grammar inspection.
Install MyCli:
To use MyCli, you need to install it first.You can use PIP to install MyCli through the following command: MYCLI:
pip install mycli
After the installation is complete, I can start myCli by running the `MyCli` command in the terminal.
Use MyCli to achieve efficient command line interaction:
1. Connect the database:
In the MyCli command line, you can use the `-H` parameter to specify the host to be connected, the user name to the` -u` parameter, `` -p` parameter specify the password you want to use, and specify the `-P` parameter specifyThe port to be used.For example, the following command will be connected to the local MySQL database:
mycli -h localhost -u username -p password -P 3306
2. Command line interface function:
MyCli provides many enhanced functions to improve the efficiency of command line interaction.
-Froche: Mycli will prompt the possible completion option when entering the command.Press the TAB key to automatically complete the command or table name.
-The grammar high: MyCli will color the command according to the SQL syntax to make it easier to read and understand.
-Plord history: MyCli records the commands you entered before, and you can access and reuse these commands through the upper and lower arrow keys.
-S grammar check: MyCli will check the grammatical errors when you enter the command and give the corresponding prompts.
3. Example code:
The following is a sample code. Use the MyCli class library to connect to the local MySQL database and perform a simple SQL query:
python
from mycli.mycli import MyCli
def main():
mycli = MyCli(host='localhost', user='username', password='password', port=3306)
result = mycli.execute("SELECT * FROM my_table")
for row in result:
print(row)
if __name__ == "__main__":
main()
Here, we first introduce the `MyCli` class, and use the designated host, user name, password, and port to create a MyCli instance.Then, we use the `Execute` method to execute the SQL query and traverse the results.Finally, we print the data of each line.
Other configuration:
In addition to the basic connection parameters, MyCli also supports other configuration options in order to customize command line interactions as needed.You can use the `~/.myClirc` file or environment variable to configure these options.For more details, see myCli document.
in conclusion:
By using Python's "MyCli" class library, we can easily achieve efficient command line interactions and provide additional functions to improve the ease of use of the command line interface.By using the functions of automatic complementary, high grammar, and grammar inspection, we can interact easily with the database to improve the efficiency of development and management.
