如何删除 docker 容器内 python 中的文件？

Question

The code below is part of my code. In my local machine, everything is fine.However, I deploy my code and inside of docker container,it gives the error "result": "[Errno 13] Permission denied: path" . What could be solution to delete in docker container also? I tried os.remove() also,It didn't work.

path = "/mypath/"
output = path + "myfile.pdf"

result_file = open(output, "w+b")

pisa_res = pisa.CreatePDF(
        source_html,               
        dest = result_file)

result_file.close()  

with open(output, "rb") as pdf_file:
    encoded_string = base64.b64encode(pdf_file.read())       

os.system(f"rm -rf {output}") 

Answer 1

I don't know what is the problem with this file and how to delete it

but I would use io.BytesIO to create file in memory and then it doesn't create file on disk and it doesn't need to delete it

I don't have pisa to test it but it should be something like this

import io

result_file = io.BytesIO()

pisa_res = pisa.CreatePDF(
        source_html,               
        dest=result_file)

result_file.seek(0) # move to the beginning of file to read it

encoded_string = base64.b64encode(result_file.read())

Module io is standard module so you don't have to install it.