From 09a52ed47bb26498c97a579ce1147861df696d84 Mon Sep 17 00:00:00 2001 From: Charles Harris Date: Thu, 28 Mar 2013 17:13:53 -0600 Subject: 2to3: Apply `imports` fixer. The `imports` fixer deals with the standard packages that have been renamed, removed, or methods that have moved. cPickle -- removed, use pickle commands -- removed, getoutput, getstatusoutput moved to subprocess urlparse -- removed, urlparse moved to urllib.parse cStringIO -- removed, use StringIO or io.StringIO copy_reg -- renamed copyreg _winreg -- renamed winreg ConfigParser -- renamed configparser __builtin__ -- renamed builtins In the case of `cPickle`, it is imported as `pickle` when python < 3 and performance may be a consideration, but otherwise plain old `pickle` is used. Dealing with `StringIO` is a bit tricky. There is an `io.StringIO` function in the `io` module, available since Python 2.6, but it expects unicode whereas `StringIO.StringIO` expects ascii. The Python 3 equivalent is then `io.BytesIO`. What I have done here is used BytesIO for anything that is emulating a file for testing purposes. That is more explicit than using a redefined StringIO as was done before we dropped support for Python 2.4 and 2.5. Closes #3180. --- numpy/lib/utils.py | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'numpy/lib/utils.py') diff --git a/numpy/lib/utils.py b/numpy/lib/utils.py index 9a8776098..b81db681e 100644 --- a/numpy/lib/utils.py +++ b/numpy/lib/utils.py @@ -848,7 +848,12 @@ def _lookfor_generate_cache(module, import_modules, regenerate): global _lookfor_caches # Local import to speed up numpy's import time. import inspect - from cStringIO import StringIO + + if sys.version_info[0] >= 3: + # In Python3 stderr, stdout are text files. + from io import StringIO + else: + from StringIO import StringIO if module is None: module = "numpy" -- cgit v1.2.1