使用Python从文件中删除空格和空行 [英] Removing spaces and empty lines from a file Using Python

问题描述

我有一个文件，其中包含一个值2000,00.

I have a file which contains a value 2000,00.

但是它包含2000,00之后的空格和空行.

But it contains spaces after 2000,00 and empty lines.

我想删除所有空格和空白行，如果有人可以提出一些想法，我尝试了多种方法，但没有成功.

I want to remove all the spaces and empty lines, if some one can give some Idea, I ave tried a number of ways but no success.

我厌倦的一种方法如下

    # Read lines as a list
fh = open("transfer-out/" + file, "r")
lines = fh.readlines()
fh.close()
# Weed out blank lines with filter
lines = filter(lambda x: not x.isspace(), lines)
# Write "transfer-out/"+file+".txt", "w"
fh = open("transfer-out/"+file, "w")
#fh.write("".join(lines))
# should also work instead of joining the list:
fh.writelines(lines)
fh.close()

推荐答案

strip()删除前导和尾随空格字符.

strip() removes leading and trailing whitespace characters.

with open("transfer-out/" + file, "r") as f:
    for line in f:
        cleanedLine = line.strip()
        if cleanedLine: # is not empty
            print(cleanedLine)

然后，您可以将脚本重定向到例如文件python clean_number.py > file.txt.

Then you can redirect the script into a file python clean_number.py > file.txt, for example.

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