例如,具有2条记录的一小部分看起来像:
INS*Y*18*001*AL*A*E**AC**N~
REF*1L*690553677~
DTP*348*D8*20200601~
DTP*349*D8*20200630~
HD*024**FAC*KJ/165/////1M*IND~
INS*Y*18*001*AL*A*E**AC**N~
REF*1L*6905456455~
DTP*348*D8*20200601~
HD*024**FAC*KJ/165/////1M*IND~
start_date
,349表示a end_date
。end_date
行。
end_date
以“”追加到列表中,以将位置保留为空end_date
值,那么该成员索引位置将有一个值,以便可以将其全部放入pandas数据框中?到目前为止,我的代码如下所示:
membership_type=[]
member_id=[]
startDate = []
endDate = []
with open(path2 + fileName, "r") as txtfile:
for line in txtfile:
# Member type
if line.startswith("INS*"):
line.split("*")
membership_type.extend(line[4]
# Member ID
if line.startwith("REF*"):
line.split("*")
member_id.extend(line[2])
# Start Dates
if line.startswith("DTP*348*"):
line = line.split("*")
start_date.extend(line[3])
# End Dates
'''What goes here?'''
结果应如下所示:
print(membership_type)
['AL','AL']
print(member_id)
['690553677','690545645']
print(startDate)
['20200601','20200601']
print(endDate)
['20200630','']
INS
和REF
与HD
场readlines
得到的字符串的所有行
re.split
拆就多个项目,*
而/
在这种情况下。/
将正确地分隔字符串中的唯一项,但也会创建要删除的空格。enumerate
每行 使用
i
,但是i
+或-数字也可以用于比较不同的行。None
或''
。
None
以方便转换为datetime
熊猫格式。line
是一排lines
,其中每个line
是enumerated
有i
。当前line
是lines[i]
,下一个line
是lines[i + 1]
。import re
membership_type = list()
member_id = list()
start_date = list()
end_date = list()
name = list()
first_name = list()
middle_name = list()
last_name = list()
with open('test.txt', "r") as f:
lines = [re.split('\*|/', x.strip().replace('~', '')) for x in f.readlines()] # clean and split each row
lines = [[i for i in l if i] for l in lines] # remove blank spaces
for i, line in enumerate(lines):
print(line) # only if you want to see
# Member type
if line[0] == "INS":
membership_type.append(line[4])
# Member ID
elif line[0] == 'REF':
member_id.append(line[2])
# Start Dates
elif (line[0] == 'DTP') and (line[1] == '348'):
start_date.append(line[3])
if (lines[i + 1][0] != 'DTP'): # the next line should be the end_date, if it's not, add None
end_date.append(None)
# End Dates
elif (line[0] == 'DTP') and (line[1] == '349'):
end_date.append(line[3])
# Names
elif line[0] == 'NM1':
name.append(' '.join(line[3:]))
first_name.append(line[3])
middle_name.append(line[4])
last_name.append(line[5])
try:
some_list.append(line[6])
except IndexError:
print('No prefix')
some_list.append(None)
try:
some_list.append(line[7])
except IndexError:
print('No suffix')
some_list.append(None)
print(membership_type)
print(member_id)
print(start_date)
print(end_date)
print(name)
print(first_name)
print(middle_name)
print(last_name)
['AL', 'AL']
['690553677', '6905456455']
['20200601', '20200601']
['20200630', None]
['SMITH JOHN PAUL MR JR', 'IMA MEAN TURD MR SR']
['SMITH', 'IMA']
['JOHN', 'MEAN']
['PAUL', 'TURD']
import pandas as pd
data = {'start_date': start_date , 'end_date': end_date, 'member_id': member_id, 'membership_type': membership_type,
'name': name, 'first_name': first_name, 'middle_name': middle_name, 'last_name': last_name}
df = pd.DataFrame(data)
# convert datetime columns
df.start_date = pd.to_datetime(df.start_date)
df.end_date = pd.to_datetime(df.end_date)
# display df
start_date end_date member_id membership_type name first_name middle_name last_name
0 2020-06-01 2020-06-30 690553677 AL SMITH JOHN PAUL MR JR SMITH JOHN PAUL
1 2020-06-01 NaT 6905456455 AL IMA MEAN TURD MR SR IMA MEAN TURD
test.txt
NM1*IL*1*SMITH*JOHN*PAUL*MR*JR~
INS*Y*18*001*AL*A*E**AC**N~
REF*1L*690553677~
DTP*348*D8*20200601~
DTP*349*D8*20200630~
HD*024**FAC*KJ/165/////1M*IND~
NM1*IL*1*IMA*MEAN*TURD*MR*SR~
INS*Y*18*001*AL*A*E**AC**N~
REF*1L*6905456455~
DTP*348*D8*20200601~
HD*024**FAC*KJ/165/////1M*IND~
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