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kandi X-RAY | py4e Summary
kandi X-RAY | py4e Summary
Course materials for www.py4e.com. The Python3 versions of the code is all in code3. If you are interested in the Python for Everybody book see the folders. See the file [book3/README.md] book3/README.md) for more details.
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Trending Discussions on py4e
QUESTION
This is the code that seems to be correct:
...ANSWER
Answered 2022-Mar-30 at 19:32As evident from c:\Users\this pc\Desktop\Course\email.py
appearing in the traceback, you have a file named email.py
in the same directory as your script, and Python's import machinery makes it think it needs to import that (via this line in urllib.request
).
Rename that email.py
to e.g. email_test.py
or whatnot - in any case, a name that's not a Python standard module - and you're good to go.
QUESTION
Below are a simple html source code I'm working with
...ANSWER
Answered 2022-Mar-08 at 21:29Select your elements via css selectors
e.g. nest pseudo classes :has()
and :not()
:
QUESTION
I'm a newbie in this sector. Here is the website I need to crawling "http://py4e-data.dr-chuck.net/comments_1430669.html" and here is it source code "view-source:http://py4e-data.dr-chuck.net/comments_1430669.html" It's a simple website for practice. The HTML code look something like:
...ANSWER
Answered 2022-Mar-08 at 18:41Just select the first in the
to get its text:
QUESTION
I'm a newbie in this sector. Here is the website I need to crawling "http://py4e-data.dr-chuck.net/comments_1430669.html" and here is it source code "view-source:http://py4e-data.dr-chuck.net/comments_1430669.html" It's a simple website for practice. The HTML code look something like:
...ANSWER
Answered 2022-Mar-08 at 18:24Try the following approach:
QUESTION
Your client has issued a malformed or illegal request. That’s all we know.
This is the code:
...ANSWER
Answered 2022-Jan-28 at 01:46The server is correct. What you do has some similarities to a HTTP request but isn't actually one. There are actually many things wrong with it.
QUESTION
Find the link at position 3 (the first name is 1). Follow that link. Repeat this process 4 times. The answer is the last name that you retrieve. Sequence of names: Fikret Montgomery Mhairade Butchi Anayah
My code:
...ANSWER
Answered 2021-Nov-08 at 08:53You can adapt this for user input but based on your stated requirements, this appears to work. [Note: You'll need Python 3.7+ and the requests module]
QUESTION
I have a simple search input in Quasar app, which should listen on input event. But it does not. The code looks like:
...ANSWER
Answered 2021-Aug-31 at 09:47QUESTION
When I scrape a webpage it returns this: 42,834.56
Apparently, it extracts it as a word (because when I try to sum it whit the other ones retrieve in excel it doesn't work). How can I convert it into a number?
I'm copying from the cmd:
Here is an error when I write it with int()
:
ANSWER
Answered 2021-Aug-19 at 04:58You can store the scraped value in a variable and convert to float in python. Here's the function:
QUESTION
The txt
file is saved in the exact same folder as my code but when I run it I get that traceback. I right clicked saved file directly to folder but when run the code vs studio. I am very new to code sorry for the basic question.
ANSWER
Answered 2021-Feb-11 at 10:35Try file = open('./regex_sum_1114202.txt', 'r')
instead.
- This explicitly specifies that Python should look for the file in the current directory by providing the relative path. Think of the point as a shorthand for the current working directory. So if the current working directory is the directory where the script and the file is, that should work.
- Use forward slashes (
/
) instead of backslashes (\
). Backslashes are the default directory separator on Windows, but here they make problems because they are interpreted as escape sequences by Python. Alternatively, you can use two backslashes after another as directory separator:\\
.
You can also try to specify the full path before the filename: file = open('c:/Users/EM2750/Desktop/py4e/ex_11/regex_sum_1114202.txt', 'r')
. The downside is of course that the path wouldn't be correct anymore if you'd move the file.
QUESTION
I am trying to make a get request with axios to return all 87 objects in this api: https://swapi.py4e.com/api/people/
If we choose to show one object we modify the url like that "https://swapi.py4e.com/api/people/2" this returns the properties of the second object in the api so I thought if I try to make a simple for loop to fetch all 87 objects one by one:
...ANSWER
Answered 2021-Jan-28 at 20:53If you are trying to do 87 fetch then you just need to use var "i". The way you are doing now you will get the following values
1,2,4,7,11,16,22....92
Calculated from the sum of n + i
0+1, 1+1, 2+2, 4+3, 7+4, 11+5, 16+6,.....92
Try this:
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