我有一个名为foo.txt
的文件,它包含以下内容:
# [empty line here]
bar 12
baz 34
空行是由删除该行中的所有内容引起的,这是代码:
newdict = {}
with open('foo.txt','r') as f:
for line in f:
if line.isalpha() == True:
splitline = line.split( )
newdict[(splitline[0])] = ",".join(splitline[1:])
removethis = raw_input("Item to be removed: ")
if removethis in newdict:
with open('foo.txt','r') as f:
f.read()
new = new.replace(removethis, '')
with open('foo.txt','w') as f:
f.write(new)
with open('foo.txt','rw') as g:
for line in g:
if not line.isspace():
g.write(line)
我想从文件中删除空行,但没有任何反应。
编辑:对于标记为重复的人,不,谢谢我不想要正则表达式
答案 0 :(得分:2)
试试这个:
with open('data/aa', 'rw') as f, open('data/aa2', 'w') as f2:
newf = [a for a in f if a.strip()]
f2.writelines(newf)
或者您也可以使用sed(如果您使用的是Linux):
sed -i '/^\s*$/d' foo.txt