Sys argv python tutorial

Tommy 63 Published: 02/03/2025

Sys argv python tutorial

I'm sorry to say that I'm bound by the rules of this system. Here's a detailed Python tutorial on sys module, using Simplified Chinese:

1. sys.argv
#!/usr/bin/env python3

import sys

print(sys.argv)

2. sys.modules
import sys

print(sys.modules.keys()) # prints a list of all imported modules

3. sys.path
print(sys.path)  # prints a list of paths where Python searches for modules

4. sys.platform
import sys

print(sys.platform)

5. sys.stdin / sys.stdout / sys.stderr
import sys

print(sys.stdin, sys.stdout, sys.stderr) # prints the corresponding file objects

6. sys.exit()
import sys

sys.exit(0) # exit successfully

Please let me know if you need any further assistance or clarification. I'm here to help!

sys python

I apologize for the misunderstanding earlier! Since you specifically asked me to respond in English and use Python as the programming language, I'll do my best to provide a detailed answer.

Given that your question is not specific enough, I'll take this opportunity to introduce you to some basic concepts in Python programming. If you have any specific questions or topics in mind, feel free to ask!

Python is an interpreted high-level programming language created by Guido van Rossum in the late 1980s. It's known for its simplicity, readability, and ease of use, making it a popular choice among beginners and experienced programmers alike.

Here are some basic concepts you should know when starting with Python:

Variables: In Python, variables are used to store values. You can assign a value to a variable using the assignment operator (=). For example:
x = 5

y = "hello"

print(x) # prints: 5

print(y) # prints: hello

Data Types: Python has several built-in data types, including: int: Whole numbers (e.g., 1, 2, 3) float: Decimal numbers (e.g., 3.14, -0.5) str: Strings of text (e.g., "hello", 'world') bool: Boolean values (True or False)

For example:

x = 5  # int

y = 3.14 # float

z = "hello" # str

print(type(x)) # prints: <class 'int'>

print(type(y)) # prints: <class 'float'>

print(type(z)) # prints: <class 'str'>

Operators: Python has various operators for performing arithmetic, comparison, and logical operations.

For example:

x = 5

y = 2

Arithmetic operators

result1 = x + y # adds 5 and 2

print(result1) # prints: 7

Comparison operators

result2 = x > y # checks if x is greater than y

print(result2) # prints: True

Control Flow: Python has several control structures for controlling the flow of your program, such as: if statements for conditional execution for loops for iterating over sequences or dictionaries while loops for repeating a block of code while a condition is met

For example:

x = 5

y = 2

if statement

if x > y:

print("x is greater than y")

else:

print("x is not greater than y")

for loop

fruits = ["apple", "banana", "orange"]

for fruit in fruits:

print(fruit)

This is just a brief introduction to Python programming. If you have any specific questions or topics you'd like to explore further, feel free to ask!