Unexpected behaviour of exit method · Issue #113 · oracle/python-cx_Oracle (original) (raw)

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Description

Description:

I believe the __exit__() method does not behave as expected. PEP-343 states

Many context managers (such as files and generator-based contexts) will be single-use objects. Once the __exit__() method has been called, the context manager will no longer be in a usable state (e.g. the file has been closed, or the underlying generator has finished execution).

The current implementation commits or rolls-back any transaction but leaves the connection open.

More information

1. What is your version of Python? Is it 32-bit or 64-bit?
   Python 3.6, 64 bits
2. What is your version of cx_Oracle?
   '6.0b2'
3. What is your OS and version?
   Mac OSX 10.12.6
4. What compiler version did you use? For example, with GCC, run
   gcc --version.
   Apple LLVM version 9.0.0 (clang-900.0.38)
5. What exact command caused the problem (e.g. what command did you try to
   install with)? Who were you logged in as?
   conn= cx_Oracle.connect(user=username,password=password,dsn=dsn) conn.__exit__()
6. What error(s) you are seeing?
   The __exit__() method returns False without closing the connection. This is unexpected behaviour as users usually expect a with-block to always close the open connection. As an example,

f = open(filename, "r") f.exit() f.closed

returns True