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Python 如何读取从os.listdir获取的文件内容?_Python_File Not Found_Python Os_Listdir - Fatal编程技术网

Python 如何读取从os.listdir获取的文件内容?

Python 如何读取从os.listdir获取的文件内容?,python,file-not-found,python-os,listdir,Python,File Not Found,Python Os,Listdir,我正在尝试读取CSV文件。我在两个文件夹下有两个CSV。我得到了CSV文件,但当我试图阅读内容时,它说我没有这样的文件或目录 import os import csv def scanCSVFile(folder, output_file_name): myfile = open(output_file_name, "a") files = os.listdir(folder) for file in files: if file.endswith('.

我正在尝试读取CSV文件。我在两个文件夹下有两个CSV。我得到了CSV文件,但当我试图阅读内容时,它说我没有这样的文件或目录

import os
import csv

def scanCSVFile(folder, output_file_name):
    myfile = open(output_file_name, "a")
    files = os.listdir(folder)
    for file in files:
        if file.endswith('.csv'): #gives two csv files
            with open(file) as csvfile: 
                csvreader = csv.reader(csvfile)
                next(csvreader)
                for line in csvreader:
                    print (line)

    myfile.close()


def openCSV(path):
    scanCSVFile("./src/goi","goi.yml")
    scanCSVFile("./src/kanji","kanji.yml")

openCSV('.')
错误:

C:\Users\Peace\Documents\LMS>python csvToYaml.py 
Traceback (most recent call last): 
File "csvToYaml.py", line 26, in <module> openCSV('.') 
File "csvToYaml.py", line 24, in openCSV scanCSVFile("./src/goi","goi.yml") 
File "csvToYaml.py", line 14, in scanCSVFile with open(file) as csvfile:  
FileNotFoundError: [Errno 2] No such file or directory: 'Pro.csv'
C:\Users\Peace\Documents\LMS>python csvToYaml.py
回溯(最近一次呼叫最后一次):
文件“csvToYaml.py”,第26行,在openCSV('.'中)
文件“csvToYaml.py”,第24行,在openCSV扫描csvfile(“./src/goi”,“goi.yml”)中
文件“csvToYaml.py”,第14行,在scanCSVFile中打开(文件)作为csvfile:
FileNotFoundError:[Errno 2]没有这样的文件或目录:“Pro.csv”

您可以使用pandas从csv文件中读取数据。数据将存储在数据帧中。 “.yml”扩展名现在已过时。主要使用“.yaml”。 下面的链接显示了如何读取.yaml文件。

#加载库并从csv文件读取数据。
作为pd进口熊猫
市场数据=pd.read\U csv(“/src/goi.csv”)
印刷品(市场价格)

您必须从代码中删除中断

import os,glob

folder_path = r'path'

for filename in glob.glob(os.path.join(folder_path, '*.csv')):
    with open(filename, 'r') as f:
        for line in f:
            print(line)