Adapted and simplified from Franck Albinet's exercises available here. Also presented by NSRC at APRICOT 2018.
...
Then you need to close the file to free up any system resources taken up by the open file. After calling
| Code Block | ||||
|---|---|---|---|---|
| ||||
f.close() |
...
attempts to use the file object will automatically fail.
...
Finally, before creating a folder or a file, we would like to test if it exists already. The code below test it and recap. the whole process:{code
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
import os
file_path = '/flash/log'
try:
os.listdir('/flash/log')
print('/flash/log file already exists.')
except OSError:
print('/flash/log file does not exist. Creating it ...')
os.mkdir('/flash/log')
name = '/my_first_file.log'
# Writing
with open(file_path + name, 'w') as f:
f.write('Testing write operations in a file.')
# Reading
with open(file_path + name, 'r') as f:
print(f.readall()) |
...