如何将Python中三行split代码合并为一行？

Got it, let's turn those three split lines into a single concise line of code. Here are two clean approaches you can use:

Approach 1: List Comprehension (No Extra Dependencies) #

This method builds on your original split logic but condenses it into one line:

x_ret, y_ret = [coord.split(':')[1] for coord in text.split(' ', 2)[:2]]

How it works: #

1. text.split(' ', 2) splits your input string into 3 parts: ['x:3400', 'y:558', 'screen:0 window:23073340']
2. [:2] grabs just the first two elements (x:... and y:...)
3. The list comprehension runs split(':')[1] on each of those two elements to extract the numeric value after the colon
4. Finally, we unpack the resulting list directly into x_ret and y_ret

Approach 2: Regular Expressions (Even Cleaner) #

If you're okay using Python's built-in re module, this method cuts straight to the chase by matching the numeric values directly:

import re

x_ret, y_ret = re.findall(r'[xy]:(\d+)', text)

How it works: #

• The regex pattern [xy]:(\d+) matches either x: or y: followed by one or more digits
• re.findall() returns a list of the captured numeric values, which we unpack into x_ret and y_ret

Full Example with subprocess #

Here's how this fits into your full workflow using xdotool:

import subprocess
# Optional: import re for the regex approach

result = subprocess.run(['xdotool', 'getmouselocation'], capture_output=True, text=True)
text = result.stdout.strip()

# Use either approach here:
x_ret, y_ret = [coord.split(':')[1] for coord in text.split(' ', 2)[:2]]
# OR
# x_ret, y_ret = re.findall(r'[xy]:(\d+)', text)

print(f"x-offset: {x_ret} y-offset: {y_ret}")

Both methods will give you the same output as your original three lines, just in a more compact form.

内容的提问来源于stack exchange，提问作者WinEunuuchs2Unix