Comments by Nick_is_asking (Top 67 by date)

I had a lot of files with a file (geckodriver_some_version.tar.gz)in github and I did clone it with all the other files in a directory ,then I write the command: tar -xvf geckodriver_some_version.tar.gz , then
mv geckodriver_some_version.tar.gz /usr/local/bin and finally
export PATH=$PATH:/usr/local/bin/geckodriver and when I enter that path I see there the geckodriver,so I think I'm right.So, what is going on?

Yes, I saw it yesterday, but didn't help me.I think I have the right version of geckodriver.One thing that I observed is that when I type "geckodriver --version" in terminal ,it doesn't show me the version,but it tells me that I have no permission of something (I don't remember now) ,despite the fact I m super user (used sudo su command).
But in my laptop when I type geckodriver --version, it shows me the version I use.
I have installed the same geckodriver in both computers(laptop & raspberry pi 3)

I use ubuntu server 20 (it has not a gui),so I use nano editor,I dont know if there is a debugger in nano.

The funny thing is that I can run the same code in my laptop and a virual machine I have (ubuntu server 20) ,but can't run it in raspberry pi 3 (ubuntu server 20)
Here I write the last line of errors:
"OSError: [Errno 8] Exec format error: 'geckodriver'"

I don't know what's going on? I included all the libraries in raspberry pi and still doesn't work.

I'm connected via TeamViewer in the raspberry pi because I'm far away and can't just copy paste all these lines of error.You can simple click the link I provide

I get this error

/usr/lib/python3/dist-packages/requests/__init__.py:89: RequestsDependencyWarning: urllib3 (1.26.8) or chardet (3.0.4) doesn't match a supported version!
warnings.warn("urllib3 ({}) or chardet ({}) doesn't match a supported "
Traceback (most recent call last):
File "carClicker.py", line 79, in <module>
print(int(off_time - datetime.datetime.now().time() ) )
TypeError: unsupported operand type(s) for -: 'datetime.time' and 'datetime.time'

Never mind.I found the solution.
I had to write "" instead of "\n".
But thank you for your time.

All I had to do was to follow these steps from this link:
https://www.youtube.com/watch?v=xgsFwaw9W4Q&ab_channel=Python-Bug

I already found the solution.Anyway.thanks for your time.

I do not keep the direction of each segment of the snake,only the coordinates.Its difficult to think something so that I can figure it out.

As about the 2nd problem, I have a lot of cells(1400 columns and 740 rows).How can I keep track of each cell and what is the algorithm to make it work?

By avoid eat itself I mean I mean I don't want the head of snake hit the body.

Yes,exactly.Thanks you very much all of you for your time.

I don't know how to do that.if anyone can help me ,I would appreciate it.

Yes

I searched a lot before ask here and didn't found anything......

I tried it before I ask here.Nothing happened

Thank you!!!

Anyone?

I want to do something for a few seconds(for example) without interrupt the whole code like time.sleep().

Any ideas?

But,Timer() method has to pass a function parameter.

Anyone?

I can't figure it out.I tried a lot.Can anyone help me?

As I said,I have a button named "Camera" and I want to open my laptop's camera if I click this button,but I also want to do other things(for example :click another button to do something else) at the same time.When I click the "Camera" button ,a black window appears(I also use opencv).
See open_camera() function here:
https://drive.google.com/file/d/1yl5bTFSZapLrYbuODl86e65oCJEdLRGE/view?usp=sharing

Thank you.I 'm thinking to write it on my own to practice more.If I have any problem, I will ask here.

Finally I will write the algorithm I found (Hsv to Rgb),because I didn't find any functions.Anyway thank you!!!

I understand.Thank you!

Ok,I understand some things,because at this semester I have assembly and C.
So Ι noticed that I have to write char *y = malloc(sizeof(char) * 50) to get
50 * (1 byte) = 50 byte of memory
and then everything's alright.

ooo, ok now I understand.
If I change char x[30] to char *x and char y[10] to char *y ,why compiler hit error?
Thanks.

Thank you,I will try ,cause I don't understand why is this happening...

No,but thanks for your interest.I found it.

Ok .I have to change it to Western IBM850

Because I want to return this character to others functions(Program is big).
I tried MANY methods ,but still nothing...

I test it and it works, BUT when I try to do it in my basic code I receive: Segmentation fault (core dumped)

char *get_word(char *buffer , size_t bufferSize , char *player_A , char *player_B , int flag)
{

char *p;

//fgetc(stdin);
fgets( buffer, bufferSize, stdin );
p = strchr( buffer, '\n' );
if( p )
{
*p = 0;
}


return buffer;
}

In main I have this: char word[ 100 + 1 ] = { 0 }; and I call
char *str = get_word(word , 100 , A , B , 0);
but doesn't work...

I'm a college student.I will have C this semester,so they will give us book.
As about this loop ,I found it on internet.

Thanks for the update.
so ,what can I do?

Ok I found the problem.Thanks by the way

Thanks!!!

Nice.
I do not understand what " if ( count[c-'a'] ) " this line does?
What exactly do you check?
Thanks!!!

I found it.
I had to write scanf(" %c" , &character);
with a space before %c.
I don't know why...

Thanks.It works fine...

Yes,I changed it ,cause I wanted to do something else I had in my mind.Never mind.Anyone can see my new above code without any trouble/miss part of program.So,any help???

Nice!!!

I disagree ,because when comes through do statement ,scanf is called so it waits for user and then check the number.This is how do while works
I checked it and it works as I expected.

I want to build snake game in terminal with C and I don't know what input to use to move snake.So simple.

I compile like this: gcc name.c name and run like this ./name
I just want to get an input without waiting for user input and without pushing [ENTER] button.

I tried this one code:

#include <stdio.h>
#include <stdlib.h>
#include <curses.h>

int main(void)
{
initscr();
noecho();
cbreak(); // don't interrupt for user input
timeout(500); // wait 500ms for key press

int c = getch();
printf("%c\n",c);
endwin();
nocbreak();
return 0;
}


but I got this error:

/tmp/ccNmVWH7.o: In function `main':
input_no_wait.c:(.text+0x9): undefined reference to `initscr'
input_no_wait.c:(.text+0xe): undefined reference to `noecho'
input_no_wait.c:(.text+0x13): undefined reference to `cbreak'
input_no_wait.c:(.text+0x1a): undefined reference to `stdscr'
input_no_wait.c:(.text+0x27): undefined reference to `wtimeout'
input_no_wait.c:(.text+0x2e): undefined reference to `stdscr'
input_no_wait.c:(.text+0x36): undefined reference to `wgetch'
input_no_wait.c:(.text+0x54): undefined reference to `endwin'
input_no_wait.c:(.text+0x59): undefined reference to `nocbreak'
collect2: error: ld returned 1 exit status

Is there anything else,because I don't understand??

no this is not what I want ,but thanks for your try.I want to draw and print letter "O" inside , to look like a ball (same size with letter "O").

I forgot to say that I want to draw a shape without graphics.
See this link to understand what I mean:
https://www.arduino.cc/en/Reference/LiquidCrystalCreateChar

Well,I want to return a string character from player_input() function.
What should I fix?

I understand that when I build a function ,its variables are saved to a special part of memory (such as main or another function),but I don't understand how to fix this problem now...
I followed your link (malloc/free) ,but it doesn't work(I'm definitely doing something wrong,I know...).
What should I do?
Can you help me?
Thanks again!!!

I just uploaded the whole code.Take a look. Thanks!!

I just uploaded the whole code.Take a look. Thanks!!

Thanks guys.It works fine.
How can I read user input until newline ('\n' , doesn't work,because I get this error: Segmentation fault (core dumped) and '\0' is used until NULL character.)?

ok I understand, thanks!!

One more question.If x = 8 and I write this: *p++; then I recieve this:
price of x = 9 , price of pointer p = -971355120 , address of x => 0x7ffec61a4c0c , address of pointer p = 0x7ffec61a4c10
=============================
.but I expected this:
price of x = 9 , price of pointer p = 9 , address of x => 0x7ffec61a4c0c , address of pointer p = 0x7ffec61a4c10

or am I wrong?

It works. Thank you!!!