¡@
python Programming Glossary: stuffWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python What are metaclasses finally Metaclasses are the 'stuff' that creates classes. You define classes in order to create.. type 'type' So a metaclass is just the stuff that creates class objects. You can call it a 'class factory'.. to customize it # so we override __new__ # you can do some stuff in __init__ too if you wish # some advanced use involves overriding..
http://stackoverflow.com/questions/1035340/reading-binary-file-in-python f open myfile rb try byte f.read 1 while byte # Do stuff with byte. byte f.read 1 finally f.close By suggestion of chrispy.. with open myfile rb as f byte f.read 1 while byte # Do stuff with byte. byte f.read 1 Note that the with statement is not.. with open myfile rb as f byte f.read 1 while byte b # Do stuff with byte. byte f.read 1 Or as benhoyt says skip the not equal..
How do I modify a text file in Python? http://stackoverflow.com/questions/125703/how-do-i-modify-a-text-file-in-python or overwrite part of it using seek but if you want to add stuff at the beginning or the middle you'll have to rewrite it. This..
What is the best project structure for a Python application? http://stackoverflow.com/questions/193161/what-is-the-best-project-structure-for-a-python-application scripts or bin for that kind of command line interface stuff tests for your tests lib for your C language libraries doc for.. named quux the directory that contains all this stuff is named quux . Another project's PYTHONPATH then can include..
How do I download a file over HTTP using Python? http://stackoverflow.com/questions/22676/how-do-i-download-a-file-over-http-using-python minus any error handling. You can also do more complex stuff such as changing headers. The documentation can be found here...
How to get file creation & modification date/times in Python? http://stackoverflow.com/questions/237079/how-to-get-file-creation-modification-date-times-in-python times in Python I have a script that needs to do some stuff based on file creation modification dates but has to run on..
How can I use a DLL from Python http://stackoverflow.com/questions/252417/how-can-i-use-a-dll-from-python p1 p2 ctypes.byref p3 ctypes.byref p4 The ctypes stuff has all the C type data types int char short void and so on..
Python string formatting: % vs. .format http://stackoverflow.com/questions/5082452/python-string-formatting-vs-format just seems more sophisticated in many ways. You can do stuff like re use arguments which you can't do with . An annoying..
Understanding Python super() and init methods http://stackoverflow.com/questions/576169/understanding-python-super-and-init-methods comes with multiple inheritance where all sorts of fun stuff can happen. See the standard docs on super if you haven't already...
How do I copy a string to the clipboard on Windows using Python? http://stackoverflow.com/questions/579687/how-do-i-copy-a-string-to-the-clipboard-on-windows-using-python and has clipboard accessing methods along with other cool stuff. If all you need is to put some text to system clipboard this..
http://stackoverflow.com/questions/7933596/django-dynamic-model-fields lists of any Django models class Container models.Model stuff ListField EmbeddedModelField class FooModel models.Model foo.. bar models.CharField ... Container.objects.create stuff FooModel foo 42 BarModel bar 'spam' Django mutant Dynamic models..
http://stackoverflow.com/questions/890128/python-lambda-why where you can pass functions to other functions to do stuff. Example mult3 filter lambda x x 3 0 1 2 3 4 5 6 7 8 9 sets..
Django with system timezone setting vs user's individual timezones http://stackoverflow.com/questions/1061911/django-with-system-timezone-setting-vs-users-individual-timezones UTC so all datetimes were stored in the database as UTC. Stuff like this scares me which is why I prefer UTC everywhere. But..
Setting and getting “data” from PyQt widget items? http://stackoverflow.com/questions/11485243/setting-and-getting-data-from-pyqt-widget-items Getting widget_item.data 0 Qt.UserRole .toLongLong 0 Stuff like toLongLong doesn't seem Pythonic at all and why are we..
Django Admin: Ordering of ForeignKey and ManyToManyField relations referencing User http://stackoverflow.com/questions/1474135/django-admin-ordering-of-foreignkey-and-manytomanyfield-relations-referencing-u user models.ForeignKey User unique True # Local Stuff image_url_s models.CharField max_length 128 blank True image_url_m..
get particular date in django template Django http://stackoverflow.com/questions/15401591/get-particular-date-in-django-template-django And in our template we would do if day_of_the_month 10 Stuff to show after the 10th else Stuff to show before the 10th endif.. if day_of_the_month 10 Stuff to show after the 10th else Stuff to show before the 10th endif This does expose stuff to your..
Time as stopping condition of infinite loop http://stackoverflow.com/questions/17352384/time-as-stopping-condition-of-infinite-loop # run infinitly while True done False while not done #Do Stuff #Main Program #stopping condition of inner while loop if datetime.datetime.now..
Efficiently updating database using SQLAlchemy ORM http://stackoverflow.com/questions/270879/efficiently-updating-database-using-sqlalchemy-orm guess for a SQLAlchemy ORM approach # snip definition of Stuff class made using declarative_base # snip creation of session.. # snip creation of session object for c in session.query Stuff c.foo c.foo 1 session.flush session.commit This does the right.. are in your session. So if you say for c in session.query Stuff .all c.foo c.foo 1 session.commit it will do what it says go..
Bash scripting “common gotchas” for Python/Perl/Ruby programmers http://stackoverflow.com/questions/3144059/bash-scripting-common-gotchas-for-python-perl-ruby-programmers are like any of the mainstream programming languages. Stuff that one might expect to just work do not. What are some of..
Python Setuptools, easy_install setup mac http://stackoverflow.com/questions/4111737/python-setuptools-easy-install-setup-mac # clean up and delete egg rm setuptools 0.6c11 py2.6.egg Stuff below was original response I just did this on my own Mac machine..
How to match a text node then follow parent nodes using XPath http://stackoverflow.com/questions/598722/how-to-match-a-text-node-then-follow-parent-nodes-using-xpath content node. doc block title Text 1 title content Stuff I want content block block title Text 2 title content Stuff.. I want content block block title Text 2 title content Stuff I don't want content block doc My Python code throws a wobbly.. etree tree etree.XML doc block title Text 1 title content Stuff I want content block block title Text 2 title content Stuff..
How can I check if an ip is in a network in python http://stackoverflow.com/questions/819355/how-can-i-check-if-an-ip-is-in-a-network-in-python there general tools in Python for ip address manipulation Stuff like host lookups ip adddress to int network address with netmask..
Occasional ctypes error importing numpy from mod_wsgi django app http://stackoverflow.com/questions/3762566/occasional-ctypes-error-importing-numpy-from-mod-wsgi-django-app middleware_method request A BUNCH OF DJANGO MIDDLEWARE STUFF HERE File home appfirst django django utils importlib.py line..
Emitting namespace specifications with ElementTree in Python http://stackoverflow.com/questions/4997848/emitting-namespace-specifications-with-elementtree-in-python #some name # build a tree structure root ET.Element STUFF body ET.SubElement root MORE_STUFF body.text STUFF EVERYWHERE.. root ET.Element STUFF body ET.SubElement root MORE_STUFF body.text STUFF EVERYWHERE # wrap it in an ElementTree instance.. STUFF body ET.SubElement root MORE_STUFF body.text STUFF EVERYWHERE # wrap it in an ElementTree instance and save as..
|