IOError:[Errno 2]没有这样的文件或目录(当它确实存在时)Python [英] IOError: [Errno 2] No such file or directory (when it really exist) Python

问题描述

我正在通过python中的uart处理文件的传输文件夹.在下面您可以看到简单的功能，但是有一个问题，因为出现标题中所示的错误:IOError: [Errno 2] No such file or directory: '1.jpg'其中1.jpg是测试文件夹中的文件之一.因此，这很奇怪，因为程序知道不存在的文件名吗?我在做什么错了?

I'm working on transfer folder of files via uart in python. Below you see simple function, but there is a problem because I get error like in title : IOError: [Errno 2] No such file or directory: '1.jpg' where 1.jpg is one of the files in test folder. So it is quite strange because program know file name which for it doesn't exist ?! What I'm doing wrong ?

def send2():
    path = '/home/pi/Downloads/test/'
    arr = os.listdir(path)
    for x in arr:
        with open(x, 'rb') as fh:
            while True:
                # send in 1024byte parts
                chunk = fh.read(1024)
                if not chunk: break
                ser.write(chunk)

推荐答案

如果您要打开的文件不在您的工作目录中，则需要提供它们的实际完整路径:

You need to provide the actual full path of the files you want to open if they are not in your working directory :

import os
def send2():
    path = '/home/pi/Downloads/test/'
    arr = os.listdir(path)
    for x in arr:
        xpath = os.path.join(path,x)
        with open(xpath, 'rb') as fh:
            while True:
                # send in 1024byte parts
                chunk = fh.read(1024)
                if not chunk: break
                ser.write(chunk)

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