Question

不确定为什么它不在循环内。

import csv
import pandas as pd
print('hi')
df = pd.DataFrame
df = pd.DataFrame(columns=['ProductID', 'SKU', 'ISBN', 'UPC','MasterProductID'])

with open(rb'E:\ETL\Python\Client\WORKCAT\shq_client.txt', encoding="utf8") as pf:
    number_of_lines = len(pf.readlines())
    print(number_of_lines)
    csv_file = csv.DictReader(pf, delimiter = '|', skipinitialspace=True, lineterminator='\r\n')
    print(csv_file)
    line_limit = 3
    line_cnt = 0
    print(line_limit)
    for row in csv_file:
        print('before if')
        if line_cnt < number_of_lines:
            print('inside')
            print(row['item_id'], row['short_description'])
            #df.index = line_cnt
            df['ProductID'] = row['item_id']
            print(df)
        else:
            pf.close    
        line_cnt += 1

输出如下所示：

Windows PowerShell
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Try the new cross-platform PowerShell https://aka.ms/pscore6

PS C:\Users\marunachalam> & C:/Users/marunachalam/AppData/Local/Programs/Python/Python37-32/python.exe c:/Users/marunachalam/Downloads/Extract-ProductFeed-Sams.py
hi
339
<csv.DictReader object at 0x0C9FB070>
3
PS C:\Users\marunachalam>

由于文件中有339条记录，我不确定为什么它不会进入应该读取csv文件记录的for循环中。

感谢您的帮助。我是Python的初学者。

谢谢

CSV文件读取未进入循环

0 个答案: