我设法为单个文件创建此文件以切割文件中的行。我想只拿奇数。
filename = sys.argv[1]
filename2 = sys.argv[2]
with open(filename) as f:
items = itertools.islice(f, 0, None, 2)
x = (list(items))
final = "".join(x)
with open(filename2, 'a+') as bb:
bb.write(final)
以上代码工作正常。但我需要手动指定文件名。如果我有100个文件需要切片怎么办?
上面的代码输出示例。它将切割/删除偶数行。
Input file
a
b
c
d
e
Output file
a
c
e
我在想循环。到目前为止,这是我的解决方案。
# Directory where it contains my pat files.
mydir = "C:\\Users\\Desktop\\Scripts\\"
files = filter(lambda x: x.endswith('.pat'), os.listdir(mydir))
# print(list(files))
# ['filepat1.pat', 'filepat2.pat', 'filepat3.pat'.......]
i = 0
new_file = 'file{}.pat'.format(i)
for file in files:
with open(file) as f:
items = itertools.islice(f, 0, None, 2)
x = (list(items))
final = "".join(x)
#print(final)
for item in items:
i +=1
new_file = 'file{}.pat'.format(i)
with open(new_file, 'a+') as ww:
ww.write(final)
我的错误是什么?好像它错过了循环。
答案 0 :(得分:2)
如果我错了,请纠正我,但来自for item in items:
的代码看起来很奇怪。根据我的理解,你试图从一个文件中拉出奇数行并将它们存储在一个新文件中,对吗?
你可以像这样重写:
mydir = "C:\\Users\\Desktop\\Scripts\\"
files = filter(lambda x: x.endswith('.pat'), os.listdir(mydir))
#print(list(files))
for i, file in enumerate(files):
with open(file) as f:
items = itertools.islice(f, 0, None, 2)
x = (list(items))
final = "".join(x)
#print(final)
new_file = 'file{}.pat'.format(i)
with open(new_file, 'a+') as ww:
ww.write(final)