[英]file writing not working as expected
我有一个python代码,它将使用sample.csv文件的第一列并将其复制到temp1.csv文件。 现在,我想将此csv文件与另一个serialNumber.txt文件进行任何常见行比较。 如果找到任何常见行,则应将其写入结果文件。 我的temp1.csv正在正确创建,但是问题是正在创建的结果文件为空。
script.py
import csv
f = open("sample.csv", "r")
reader = csv.reader(f)
data = open("temp1.csv", "wb")
w = csv.writer(data)
for row in reader:
my_row = []
my_row.append(row[0])
w.writerow(my_row)
data.close()
with open('temp1.csv', 'r') as file1:
with open('serialNumber.txt', 'r') as file2:
same = set(file1).intersection(file2)
print same
with open('result.csv', 'w') as file_out:
for line in same:
file_out.write(line)
print line
sample.csv
M11435TDS144,STB#1,Router#1
M11543TH4292,STB#2,Router#1
M11509TD9937,STB#3,Router#1
M11543TH4258,STB#4,Router#1
serialNumber.txt
G1A114042400571
M11543TH4258
M11251TH1230
M11435TDS144
M11543TH4292
M11509TD9937
with open('temp1.csv', 'r') as file1:
list1 = file1.readlines()
set1 = set(list1)
with open('temp2.csv', 'r') as file2:
list2 = file2.readlines()
set2 = set(list2)
现在您可以按组处理内容
我想指出,您的原始代码不会在每行之后插入换行符,因此我不确定是否会出现换行符。 如果不是,您需要添加这些,否则您将一团糟
你可能想要这个
same = set(list(file1)).intersection(list(file2))
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