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python3.x - Python3 socket sendall appears 10057

When I was learning python to make a small example of socket, I found that as long as sendall is used, the fol...

From [Pythondiscussion group] 2017-06-28 09:24:18 0  1  1053

python - Using __call__ to implement decorator functions

Use the __call__ of a class to implement a decorator, as shown in the following code {code...} If this class i...

From [Pythondiscussion group] 2017-06-28 09:24:02 0  1  956

python - Django Admin creates a custom page not associated with any model

Since all Django Admin pages are associated with models, how do you create a page in the Admin background that...

From [Pythondiscussion group] 2017-06-28 09:23:56 0  1  1016

python3.x - Java calls python, and the python code stops automatically, and the reason cannot be found

{Code...} Calling the python code takes a long time to execute. It is estimated to take several hours, about f...

From [Pythondiscussion group] 2017-06-28 09:23:50 0  3  1247

Using TensorFlow to create a logistic regression model training results are nan

In TensorFlow, I want to create a logistic regression model with the following cost function: The screenshot o...

From [Pythondiscussion group] 2017-06-28 09:23:45 0  1  1224

Scrapy how to get original start_url

When Scrapy crawls, the original start_url will change due to redirection or other reasons. How can I get the ...

From [Pythondiscussion group] 2017-06-28 09:23:41 0  1  1115

Regular expression - how to match IP address in python

Now I need to match all the IP addresses in the list that are not x.x.x.1. I don’t know how to do this. What I...

From [Pythondiscussion group] 2017-06-28 09:23:37 0  1  1085

python - Use sklearn to find tfidf features of large text?

The above data is obtained from the 7303 training set from the reuters data set, and sklearn is used to obtain...

From [Pythondiscussion group] 2017-06-28 09:23:35 0  1  928

Scrapy LOG information output to file - Stack Overflow

How to output Scrapy LOG information to a file?

From [Pythondiscussion group] 2017-06-28 09:23:20 0  1  1013

How to find files named with numbers in Python?

There are the following files: /images/1.png/images/2.png/images/10.png/images/100.png/images/a.png How to fin...

From [Pythondiscussion group] 2017-06-28 09:23:17 0  1  968

python - Problems with personal blog database design

I need to design a personal blog and have encountered difficulties in database design. The function I want to ...

From [Pythondiscussion group] 2017-06-28 09:23:13 0  3  964

Python string case conversion problem

str.lower() strings are all lowercase. str.upper() string in all uppercase letters. {code...} How can I capita...

From [Pythondiscussion group] 2017-06-28 09:23:09 0  2  1401

linux - How to write the following shell command in python?

The original script was maintained by a senior. It was a shell script that was too difficult to understand. Th...

From [Pythondiscussion group] 2017-06-28 09:23:05 0  3  1214

javascript - How to solve cross-domain problems for the middle layer in node

I have tried to use nginx, but I don’t know nginx at all. After configuring it for a long time, I still can’t ...

From [Pythondiscussion group] 2017-06-28 09:23:00 0  2  893

Newbie, I don't know how to solve the problem of keras import failure in python?

I am using python2.7. I installed Anaconda2 and MinGW according to the instructions on the Internet. After ins...

From [Pythondiscussion group] 2017-06-28 09:22:47 0  1  1015