[英]Conditional list Python
我打开 zip 中存在的所有文件,然后将字符串转换为 List,然后将列表从每行分成 5 个元素。
我的代码:
with zipfile.ZipFile(dummy.zip, 'r') as mz:
for f in mz.namelist():
data = mz.read(f).decode('utf-8').replace("\n", '').replace("\r", ',').lstrip().rstrip().split(",") #Removing all spaces and \r from text.
allist = [data[i:i + 5] for i in range(len(data))[::5]] #breaking list into 5 elements each
如果所有值都存在,我能够完美地做到这一点,但是如果特定行上缺少任何元素,那么它会从第二行中获取值,但我想在缺少元素的位置添加NA
。
文件数据: Dummy.zip = "File1 + File2"
文件1:
Yuli, yu@test.com, 0001, 8902
Su, su@test.com, 0002, 8903, Manager
文件:2
Zaon, zn@test.com, 100, 9087, Analyst
June, ju@test.com, 278, 6078
代码的目的:
我正在添加将此列表转换为 dict,因此将键添加到每个条目,如name, email, ext, Empid, Level
你可以这样做:
texts = [b"Yuli, yu@test.com, 0001, 8902\r\nSu, su@test.com, 0002, 8903, Manager",
b"Zaon, zn@test.com, 100, 9087, Analyst\r\nJune, ju@test.com, 278, 6078"]
result =[]
keys = "name,email,ext,Empid,Level".split(",")
# you do:
# with zipfile.ZipFile(dummy.zip, 'r') as mz:
# for f in mz.namelist():
# t = mz.read(f) here instead
# instead
for t in texts:
for line in t.decode("utf-8").split("\n"):
d = {k:"NA" for k in keys} # init all keys with NA
# update with actual values
d.update(zip(keys,(l.strip() for l in line.strip().split(","))))
# add to result list
result.append(d)
print(result)
输出:
[{'name': 'Yuli', 'email': 'yu@test.com', 'ext': '0001', 'Empid': '8902', 'Level': 'NA'},
{'name': 'Su', 'email': 'su@test.com', 'ext': '0002', 'Empid': '8903', 'Level': 'Manager'},
{'name': 'Zaon', 'email': 'zn@test.com', 'ext': '100', 'Empid': '9087', 'Level': 'Analyst'},
{'name': 'June', 'email': 'ju@test.com', 'ext': '278', 'Empid': '6078', 'Level': 'NA'}]
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