How to deal with python file reading failure

When reading files, such as reading xxx.csv, encoding errors may be reported

Similar to

‘xxx’ codec can’t decode byte 0xac in position 211: illegal multibyte sequen

id_list =[]withopen('E:/work_spider/xxx/xx.csv',"r", encoding="utf-8")as csvfile:
 csvReader = csv.reader(csvfile)for content in csvReader:
 content =str(content)if'l.'in content:continue
 id_list.append(content.split('\')[0].replace("['", ""))

You can try to develop an encoding method when reading.

Unicode decode error xxxxxxxxxxx may also be reported when saving pictures or video files

VideoHtmlContent = requests.get(url = VideoUrl,headers=headers).content
withopen('bobovideo.mp4','wb',)as f:
 f.write(VideoHtmlContent)

Don't forget its file opening method, pictures and videos are all requested and written in bytes type binary mode. We use'wb' to open in binary writing mode

There are many open modes for open. The following are for reference and reference only:

a means append, r means read, w means write, and + means read and write mode. , B means binary, t means text mode, t is the default mode.

w is opened for writing,
a Open in append mode (start from EOF, create a new file if necessary)
r+ open in read-write mode
w+ open in read-write mode
a+ Open in read-write mode
rb opens in binary read mode
wb opens in binary writing mode
ab opens in binary append mode
rb+ opens in binary read-write mode
wb+ opens in binary read-write mode
ab+ opens in binary read-write mode

Question extension:

Python file reading: errors encountered and solutions

TypeError: ‘str’ object is not callable

cause:

The error TypeError:'str' object is not callable literally means: that str cannot be called by the system,

In fact, the reason is: you are calling a variable or object that cannot be called. The specific manifestation is that you call the function or variable in the wrong way.

example:

filePath=kwargs['path']
filePathStr=str（filePath）

That is, I am using keyword parameters to pass parameters, what type is passed when it is passed, what type is passed, that is, filePath is originally a string type, but I used the str() function to act on it. This is the problem, the function call is wrong!

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