How to read the screen resolution by python3.7

If we want to know the windows' screen resolution, we can use the win32api and win32con to get the value from windows.

The example as below.

import win32api, win32con

y = win32api.GetSystemMetrics(win32con.SM_CYSCREEN)
x = win32api.GetSystemMetrics(win32con.SM_CXSCREEN)

print(x, ",", y)

The execution result:

2560 , 1080

Process finished with exit code 0

About the difference between os.exit () and sys.exit () in python

The sys.exit() the return code can be capture by caller, but os.exit() just end the process.

In the python documentation has below explain.

• os.exit()

• sys.exit()

How to create a requirement file of python project

For each project, we need a file that records the project's software package in the required format.

So we can use the freeze command to output the software package version.

The pip has command freeze that will list all software package version.

pip help message

We can use the freeze to export the requirement.txt.

The file will including the software package version.

How to install the software package in the new environment?

Python 筆記: 二維列表使用

筆記:

H_1 = [1, 11, 111]
H_2 = [2, 22, 222]
H_3 = [3, 33, 333]
H_4 = [4, 44, 444]
H_5 = [5, 55, 555]
H_6 = [6, 66, 666]

a = [H_1, H_2, H_3, H_4, H_5, H_6]

print(a[5][2])

output:
666