Answer:
Output explanation to the given code can be defined as follows:
Explanation:
In A the output is 0
, It will return fork value of the child process that is 0. so, 0 is printed during child process.
In B the output is 2650
, in which the getpid() method returns the child process id value that is 2650.
In C the output is 140, As it is declared in key, all process have their own "value" copies. 20 are inserted during childhood, so 140 are written.
In D the output is 2650, its fork() method returns the child ID to the parent process. so the value 2650 is printed.
In E the output is 2600, Its getpid() method will returns parent process id that is equal to 2600.
In F the output is 120 Since the value is declared in primary, all process so their own "value" copies. 120 will be printed during process.
- Question -
What influenced work about the Vietnam War was written by Tim O Brian?
- Answer -
The Things They Carried
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These were a series of short stories O Brien wrote including in these stories his experiences with the Vietnam War
Making the file read-only will not allow the file to be rewritten again. For this, we need to modify the permissions of the file. To achieve this, we will make use of the os module in Python more specifically, the chmod() of the os module.
The coding part is extremely simple and will contain very few lines as we are not doing much but changing the permissions. Using the chmod(), we can change the mode of the path, setting it to any mode using the suitable flags from the stat module. Both these modules come inbuilt with Python and hence you need not install anything additionally.
The entire code to change the file to read-only is as follows;
import os
from stat import S_IREAD
# Replace the first parameter with your file name
os.chmod("sample.txt", S_IREAD)
.
You can verify if the code was executed correctly by checking the file’s permissions. To do that :
Right-click on the file and click properties.
Under the attributes section, you will find the read-only checkbox checked.
I hope you found this article useful and it helped you make a file read-only. You can do more than just making the file read-only by using the appropriate flag from the stat module.
