运行到一个树桩,我有两个遗留文本文件,我想从中提取数据,以创建一个csv文件。
这里要做的就是我的代码与我在屏幕上完全一样:
import csv, itertools
list1 = []
with open('D:/py_files/legacy_temp/REPORT_1.TXT', 'rb') as tf:
for line in tf:
if len(line) > 2:
if line[17].isdigit():
acctnum = str(line[16:31])
custname = str(line[39:58])
currbal = str(line[84:96])
diffbal = str(line[102:114])
list1.append(acctnum + '|' + custname + '|' + currbal + '|' + diffbal)
list2 = []
with open('D:/py_files/legacy_temp/REPORT_2.TXT', 'rb') as tf2:
for line in tf2:
if line[0].isdigit():
acctnum = str(line[1:12])
ourbal = str(line[80:90])
alldnum = str(line[123:131])
clntnum = str(line[132:152])
list2.append(acctnum + '|' + ourbal + '|' + alldnum + '|' + clntnum)
下面的代码只是我的剪贴簿,我正在尝试的事情。我可以创建csv文件,但它要么写为一个长连续行,要么在附加'|'时写入在每个char之后,即:a | b | c | d |等...
#mlist = []
#if len(list1) == len(list2):
# for i, j in map(None,list1,list2):
# print i + '|' + j
def f1():
clist = []
outfile = csv.writer(open('D:/py_files/legacy_temp_/report_diff.csv', 'wb'))
if len(list1) == len(list2):
for i, j in map(None,list1,list2):
clist.append(str(i + '|' + j + '\n'))
outfile.writerow(clist)
print '\n'.join(clist)
def f2():
for x,y in zip(list1,list2):
print list1+list2
def f3():
output = list(itertools.chain(list1,list2))
print '\n'.join(output)
两件事,a)我是以正确的方式(分别打开两个文本文件),以及b)如果我是,我怎么能写一个csv文件,它会给我以下几行:
acctnum|custname|currbal|diffbal|acctnum|ourbal|alldnum|clntnum
上面|
内的每个元素,在一个单独的单元格中。
PS。我只使用管道作为分隔符,因为余额中有逗号。我不需要使用管道,因为我可以替换余额中的逗号。
非常感谢所有帮助,谢谢
答案 0 :(得分:1)
实际上,原始函数可以使用第二个函数进行一些小修改:
def f2():
for x,y in zip(list1,list2):
print list1+list2 <-- this should be print x+y
答案 1 :(得分:0)
应该把你要添加的内容放在括号中。
list1.append([acctnum + '|' + custname + '|' + currbal + '|' + diffbal])
您也可以这样做:
list1.append(['|'.join([acctnum, custname, currbal, diffbal])])
然后,您将获得list1中的一堆列表,这些列表代表一行。
答案 2 :(得分:0)
如果您想要以最快,最简单的方式将数据从txt转换为csv,您可以执行以下操作:
import csv
header = ('acctnum,custname,currbal,diffbal,acctnum,ourbal,alldnum,clntnum\n')
with open('out.csv', 'wb') as fout:
fout.write(header)
with open('blah1.txt', 'rU') as fin1:
fin1.next()
for row in fin1:
fout.write(row.replace('|',','))
fout.write('\n')
with open('blah2.txt', 'rU') as fin2:
fin2.next()
for row in fin2:
fout.write(row.replace('|',','))
这将获取您的两个文件,并在处理管道分隔符时将它们合并为一个CSV。如果你已经删除了你的管道,那么只需删除“.replace('|',',')位,这样你就只能将”row“传递给csv writer。然后你可以删除你没有的任何其他列。想要excel或者什么。
答案 3 :(得分:0)
import csv
path = 'D:/py_files/legacy_temp/'
outfile1 = csv.writer(open(path + 'REPORT_1.csv', 'wb'))
with open(path + 'REPORT_1.TXT', 'rb') as f1:
for line in f1:
lne = line.replace('\x0c','').replace('\x1c','').replace('\r','').replace('\n','')
if len(lne) > 2:
if lne[17].isdigit():
list1 = []
list1.append(str(lne[16:31].replace('-','').strip()))
list1.append(str(lne[39:58].strip()))
list1.append(str(lne[84:96].strip()))
list1.append(str(lne[102:114].strip()))
outfile1.writerow(list1)
outfile2 = csv.writer(open(path + 'REPORT_2.csv', 'wb'))
with open(path + 'REPORT_2.TXT', 'rb') as f2:
for line in f2:
lne = line.replace('\x0c','').replace('\x1c','').replace('\r','').replace('\n','')
if len(lne) > 1:
if lne[0].isdigit():
list2 = []
list2.append(str(lne[1:12].strip()))
list2.append(str(lne[80:90].strip()))
list2.append(str(lne[123:131].strip()))
list2.append(str(lne[132:152].strip()))
outfile2.writerow(list2)
现在我正在查看csv文件,我只是合并两个列表并创建一个csv文件。它们总是一样长。如果他们不是,那么报告有问题。我将开始研究这个......
修改: 这是合并......
import csv
path = 'D:/py_files/legacy_temp/'
with open(path + 'REPORT_MERGE.csv', 'wb') as csvf1:
writer = csv.writer(csvf1)
lst1 = []
with open(path + 'REPORT_1.TXT', 'rb') as f1:
for line in f1:
lne = line.replace('\x0c','').replace('\x1c','').replace('\r','').replace('\n','')
if len(lne) > 2:
if lne[17].isdigit():
list1 = []
list1.append(str(lne[16:31].replace('-','').strip()))
list1.append(str(lne[39:58].strip()))
list1.append(str(lne[84:96].strip()))
list1.append(str(lne[102:114].strip()))
lst1.append(list1)
#creates ['x', 'x', 'x', 'x']
lst2 = []
with open(path + 'REPORT_2.TXT', 'rb') as f2:
for line in f2:
lne = line.replace('\x0c','').replace('\x1c','').replace('\r','').replace('\n','')
if len(lne) > 1:
if lne[0].isdigit():
list2 = []
list2.append(str(lne[1:12].strip()))
list2.append(str(lne[80:90].strip()))
list2.append(str(lne[123:131].strip()))
list2.append(str(lne[132:152].strip()))
lst2.append(list2)
#creates ['y', 'y', 'y', 'y']
for x, y in zip(lst1,lst2):
writer.writerow(x + y)
#creates ['x', 'x', 'x', 'x', 'y', 'y', 'y', 'y']
#each element in merged list writes to its own cell *****