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python Programming Glossary: do_somethingDifferences between isinstance() and type() in python http://stackoverflow.com/questions/1549801/differences-between-isinstance-and-type-in-python Using type import types if type a is types.DictType do_something if type b in types.StringTypes do_something_else Using isinstance.. types.DictType do_something if type b in types.StringTypes do_something_else Using isinstance if isinstance a dict do_something if isinstance.. do_something_else Using isinstance if isinstance a dict do_something if isinstance b str or isinstance b unicode do_something_else..
Python style: multiple-line conditions in IFs http://stackoverflow.com/questions/181530/python-style-multiple-line-conditions-in-ifs 'val1' and cond2 'val2' and cond3 'val3' and cond4 'val4' do_something Isn't very very appealing visually because the action blends.. 'val1' and cond2 'val2' and cond3 'val3' and cond4 'val4' do_something Not very pretty I know Can you recommend an alternative way.. 'val1' and cond2 'val2' and cond3 'val3' and cond4 'val4' do_something Also don't forget the whitespace is more flexible than you might..
Lost connection to MySQL server during query http://stackoverflow.com/questions/1884859/lost-connection-to-mysql-server-during-query sql SELECT bla FROM foo data db.query sql for row in data do_something row # But I'm always getting this # Traceback most recent call..
Python: open multiple files using “with open”? http://stackoverflow.com/questions/4617034/python-open-multiple-files-using-with-open statement try with open 'a' 'w' as a and open 'b' 'w' as b do_something except IOError as e print 'Operation failed s' e.strerror If.. you can write with open 'a' 'w' as a open 'b' 'w' as b do_something In earlier versions of Python you can sometimes use contextlib.nested..
How can I listen for 'usb device inserted' events in Linux, in Python? http://stackoverflow.com/questions/469243/how-can-i-listen-for-usb-device-inserted-events-in-linux-in-python on capabilities. It will accept any volume and will call do_something with if you can read Hal documentation to find the more suitable.. if device.QueryCapability volume return self.do_something device Example function that shows some information about the.. function that shows some information about the volume def do_something self volume device_file volume.GetProperty block.device label..
What is the best way to repeatedly execute a function every x seconds in Python? http://stackoverflow.com/questions/474528/what-is-the-best-way-to-repeatedly-execute-a-function-every-x-seconds-in-python sched time s sched.scheduler time.time time.sleep def do_something sc print Doing stuff... # do your stuff sc.enter 60 1 do_something.. sc print Doing stuff... # do your stuff sc.enter 60 1 do_something sc s.enter 60 1 do_something s s.run share improve this answer..
How to read large file, line by line in python http://stackoverflow.com/questions/8009882/how-to-read-large-file-line-by-line-in-python Code so far for each_line in fileinput.input input_file do_something each_line for each_line_again in fileinput.input input_file.. for each_line_again in fileinput.input input_file do_something each_line_again Executing this code gives an error message device..
Is it possible to implement a Python for range loop without an iterator variable? http://stackoverflow.com/questions/818828/is-it-possible-to-implement-a-python-for-range-loop-without-an-iterator-variable in reality is just another variable. for _ in range n do_something Note that _ is assigned the last result that returned in an..
Python's most efficient way to choose longest string in list? http://stackoverflow.com/questions/873327/pythons-most-efficient-way-to-choose-longest-string-in-list '123' '123456' '1234' for each in mylist if condition1 do_something elif ___________________ #else if each is the longest string.. #else if each is the longest string contained in mylist do_something_else I'm brand new to python and I'm sure I'm just having a..
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