In python, the problem about using format to open the document

Use the format method to open the image, but I don’t know what this code means. See the screenshot? {code...}

From [Pythondiscussion group] 2017-06-28 09:25:15 0  2  1083

How Python Selenium WebDriver refreshes the current page

The URL of the current page is: {code...} Is it necessary to refresh the current page like this? How stupid: {...

From [Pythondiscussion group] 2017-06-28 09:25:11 0  1  1431

python - Use scrapy to write a crawler. After sending a request, the server all returns 202 directly. What should I do?

What I crawled was the China Judgment Documents Network, and it was working fine before. I sent a request, and...

From [Pythondiscussion group] 2017-06-28 09:25:09 0  2  1687

python - website access frequency limit for accounts

When crawling a certain website, the access frequency of the account is limited. If you switch accounts, you m...

From [Pythondiscussion group] 2017-06-28 09:25:06 0  3  953

python - Using Scrapy, how to request a new URL and call back the specified function?

Regarding the use of Scrapy under Python3 {code...} When I execute the above code, I cannot successfully call ...

From [Pythondiscussion group] 2017-06-28 09:25:02 0  1  954

[Python Newbie] Ask a question about the function of __new__ method

Code A: {code...} Code A running result: Code B: {code...} Code B running result: Code C: {code...} Code C run...

From [Pythondiscussion group] 2017-06-28 09:24:55 0  1  663

string - Python string case-insensitive replacement

Replace hello in Hello World, HELLO PYTHON with My. Since the replace() function replacement is case-sensitive...

From [Pythondiscussion group] 2017-06-28 09:24:52 0  2  1663

dict - Python determines whether there are duplicate values ​​in a dictionary

The input is a dictionary, for example: {'A': 1, 'B': 1, 'C': 3}. How to determine whether there are duplicate...

From [Pythondiscussion group] 2017-06-28 09:24:49 0  2  1412

python - How to remove duplicate elements?

For example, the first line above contains 3:19 and 3:6. How to write code so that the final file only takes t...

From [Pythondiscussion group] 2017-06-28 09:24:47 0  2  800

shell - How to pass parameters passed to bash to python starting from the second one

{code...} Running method {code...} is how to pass the incoming bash parameters to the python script starting f...

From [Pythondiscussion group] 2017-06-28 09:24:40 0  1  1234

python - Is there any way to get all network request URLs in the network when opening a web page?

Is there any relevant interface to obtain it?

From [Pythondiscussion group] 2017-06-28 09:24:38 0  1  1468

class variables in python

Are variables in classes the same as self.var1 in functions? Why are they the same? {Code...} After the functi...

From [Pythondiscussion group] 2017-06-28 09:24:34 0  1  813

The file inexplicably becomes very large after merging in python

As shown in the figure, there are two csv files annotation and unigene, which have a common column name of &qu...

From [Pythondiscussion group] 2017-06-28 09:24:30 0  1  819

[Python Newbie] Ask a question about initializing an object once

The code is as follows: {code...} Execution results: My question: According to my idea, what I wrote in this c...

From [Pythondiscussion group] 2017-06-28 09:24:24 0  1  718

Concurrency model - Why does python put the process pool in the decorator not taking effect and no error reported?

I wanted to encapsulate the process pool in a decorator, but it neither took effect nor reported an error {cod...

From [Pythondiscussion group] 2017-06-28 09:24:20 0  2  886