How to write from a python file to another python script, modify the new python script and save it into a new path.

Question

sachin k p 2018-9-1

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/417112-how-to-write-from-a-python-file-to-another-python-script-modify-the-new-python-script-and-save-it-i

编辑： Akshay Kumar 2018-9-4

 replaceLine =2;
 fid = fopen('Downloads\mat.py', 'r+');
 X = fread(fid);
 fclose(fid);
 for k=1:(replaceLine-1);
     fgetl(X);
 end
 fseek(X, 1, 'bof');
 fprintf(X,'%s',mat_file);
 py_File= sprintf('r%d_r%dr.py',pressure_grad,pressure_max); %filename of py file
 path1=['F:\excel\' py_file];
 fwrite(path1,X);

I am getting an error in fread function and fgetl function.

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Answer 1

Akshay Kumar 2018-9-4

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/417112-how-to-write-from-a-python-file-to-another-python-script-modify-the-new-python-script-and-save-it-i#answer_335361

编辑：Akshay Kumar 2018-9-4

在 MATLAB Online 中打开

The reason for the error in ‘fgetl’ was because you were trying to pass the content 'X' read from the file using 'fread', as input in 'fgetl'.

'fgetl' takes only the file descriptor as input. You can go through these links for more information on fread and fgetl

Additionally, you can go through the below code for reading from one file and writing to another file

   fid1 = fopen(readFile, 'r');
   line = fgetl(fid1);
   lines = cell(0,1);
   while(ischar(line))
       lines{end+1,1} = line;
       line = fgetl(fid1);
   end
   fclose(fid1);
   fid2 = fopen(writeFile, 'a');
   for i=1:length(lines)
      fprintf(fid2,'%s\n',lines{i});
   end
   fclose(fid2);