Try looking at the function 'isinstance', so for example if isinstance(obj, str): print "object is a string.." elif isinstance(obj, int): print "object is an integer.."
-----Original Message----- From: python-list-bounces+billy.earney=gmail....@python.org [mailto:python-list-bounces+billy.earney=gmail....@python.org] On Behalf Of mk Sent: Friday, November 20, 2009 4:10 AM To: python-list@python.org Subject: checking 'type' programmatically Disclaimer: this is for exploring and debugging only. Really. I can check type or __class__ in the interactive interpreter: Python 2.6.2 (r262:71600, Jun 16 2009, 16:49:04) [GCC 4.1.2 20080704 (Red Hat 4.1.2-44)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import subprocess >>> p=subprocess.Popen(['/bin/ls'],stdout=subprocess.PIPE,stderr=subprocess.PIPE ) >>> p <subprocess.Popen object at 0xb7f2010c> >>> (so, se) = p.communicate() >>> so 'abc.txt\nbak\nbox\nbuild\ndead.letter\nDesktop\nhrs\nmbox\nmmultbench\nmmul tbench.c\npyinstaller\nscreenlog.0\nshutdown\ntaddm_import.log\nv2\nvm\nwork space\n' >>> se '' >>> so.__class__ <type 'str'> >>> type(so) <type 'str'> >>> type(se) <type 'str'> But when I do smth like this in code that is ran non-interactively (as normal program): req.write('stderr type %s<br>' % type(se)) req.write('stderr class %s<br>' % str(se.__class__)) then I get empty output. WTF? How do I get the type or __class__ into some object that I can display? Why do that: e.g. if documentation is incomplete, e.g. documentation on Popen.communicate() says "communicate() returns a tuple (stdoutdata, stderrdata)" but doesn't say what is the class of stdoutdata and stderrdata (a file object to read? a string?). Regards, mk -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list