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How to delete blank at end of multi-line & how to delete multi-line str In the beginning

Hello, I have two questions, 1. how to delete blank at end of multi-line; 2. how to delete multi-line str In the beginning, for example: 1.#!/usr/bin/env python
2.from myThread import MyThread
3.from time import ctime, sleep
4.def fib(x):
5.sleep(0.005)
1. I want to delete multi-line blank at end of line, 2. I want to delete multi-line str In the beginning, like: 1. 2. 3. at front of line, thanks very much.

How to delete blank at end of multi-line & how to delete multi-line str In the beginning

Hello, I have two questions, 1. how to delete blank at end of multi-line; 2. how to delete multi-line str In the beginning, for example: example:

1.#!/usr/bin/env python 
2.from myThread import MyThread
3.from time import ctime, sleep
4.def fib(x):
5.sleep(0.005)
5.sleep(0.005)
1.
  1. I want to delete multi-line blank at end of line, 2. line,
  2. I want to delete multi-line str In the beginning, like: 1. 2. 3. at front of line, thanks very much.