utiliser un fichier temporaire en écriture, puis en lecture

[ben5962]

ERROR: setUpClass (test_bdd.testbdd)

Traceback (most recent call last): File "C:\Users\Utilisateur\AppData\Local\Programs\Python\Python36-32\lib\tempfile.py", line 552, in NamedTemporaryFile newline=newline, encoding=encoding) ValueError: must have exactly one of create/read/write/append mode

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "C:\Users\Utilisateur\Documents\GitHub\python_planning\test_bdd.py", line 66, in setUpClass cls.xplode_from_file = tempfile.NamedTemporaryFile(mode='rw', delete=False) File "C:\Users\Utilisateur\AppData\Local\Programs\Python\Python36-32\lib\tempfile.py", line 556, in NamedTemporaryFile _os.unlink(name) PermissionError: [WinError 32] Le processus ne peut pas accéder au fichier car ce fichier est utilisé par un autre processus: 'C:\Users\UTILIS~1\AppData\Local\Temp\tmpmg4c6jaf'

[ben5962]

1) create the named temporary file a = tempfile.NamedTemporaryFile(delete=False) default mode: w 2) fill it for i in ["sqsqdf", "qdsfqd", "sqdfqds"]: print(i, a) 3) close it a.close() 4) reopen it like a file but 'r': with open(aa.name) as b: 5) do the read stuff for line in b: print(b).... 6) delete the temporary file : os.unlink