Use my tempdir - exception

---

examples/advanced/use_my_tempdir_exception.py

import os
from my_tempdir import my_tempdir

with my_tempdir() as tmp_dir:
    print(f"In return context with {tmp_dir}")
    with open(tmp_dir + '/data.txt', 'w') as fh:
        fh.write("hello")
    print(os.listdir(tmp_dir))
    raise Exception('trouble')

print('')
print(tmp_dir)
print(os.path.exists(tmp_dir))

start return
In return context with /tmp/1578211921.12552210.9000097350821897
['data.txt']
end return
Traceback (most recent call last):
  File "use_my_tempdir_exception.py", line 9, in <module>
    raise Exception('trouble')
Exception: trouble