How to resolve the algorithm Terminal control/Dimensions step by step in the Python programming language
How to resolve the algorithm Terminal control/Dimensions step by step in the Python programming language
Table of Contents
Problem Statement
Determine the height and width of the terminal, and store this information into variables for subsequent use.
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Terminal control/Dimensions step by step in the Python programming language
The Python script uses platform-specific methods to determine the width and height of the terminal window:
-
For Windows (with
os.name == 'nt'
), it uses theGetConsoleScreenBufferInfo
function from thectypes
library to get the console screen buffer information. It retrieves the width and height from the returnedCONSOLE_SCREEN_BUFFER_INFO
structure. -
For Linux (with
os.name == 'posix'
), it uses thetput
command-line utility to get the terminal dimensions. It callstput cols
to get the width andtput lines
to get the height, then converts the string results to integers.
The script then prints the terminal dimensions using the appropriate platform-specific method. This approach ensures that it accurately determines the terminal size regardless of the operating system.
Source code in the python programming language
import os
def get_windows_terminal():
from ctypes import windll, create_string_buffer
h = windll.kernel32.GetStdHandle(-12)
csbi = create_string_buffer(22)
res = windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
#return default size if actual size can't be determined
if not res: return 80, 25
import struct
(bufx, bufy, curx, cury, wattr, left, top, right, bottom, maxx, maxy)\
= struct.unpack("hhhhHhhhhhh", csbi.raw)
width = right - left + 1
height = bottom - top + 1
return width, height
def get_linux_terminal():
width = os.popen('tput cols', 'r').readline()
height = os.popen('tput lines', 'r').readline()
return int(width), int(height)
print get_linux_terminal() if os.name == 'posix' else get_windows_terminal()
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