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python Programming Glossary: intoWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python a class object with the list of its attribute turned into uppercase. # pick up any attribute that doesn't start with '__'.. turn the Person you just defined with simple statements into a complex hook to a database field. Django makes something complex..
Difference between __str__ and __repr__ in Python http://stackoverflow.com/questions/1436703/difference-between-str-and-repr-in-python would have been too dangerous for example too easy to get into infinite recursion if objects reference each other . So Python..
http://stackoverflow.com/questions/15112125/if-x-or-y-or-z-blah I was wondering if there was a way to translate the first into Python. So say x 0 y 1 z 3 if x or y or z 0 Mylist.append c..
Import a module from a relative path http://stackoverflow.com/questions/279237/import-a-module-from-a-relative-path dirBar and dirBar contains Bar.py how do I import Bar.py into Foo.py Here's a visual representation dirFoo Foo.py dirBar Bar.py..
Print in terminal with colors using Python? http://stackoverflow.com/questions/287871/print-in-terminal-with-colors-using-python like you are if you are writing a game you should look into the curses module which handles a lot of the complicated parts..
How do you split a list into evenly sized chunks in Python? http://stackoverflow.com/questions/312443/how-do-you-split-a-list-into-evenly-sized-chunks-in-python do you split a list into evenly sized chunks in Python I have a list of arbitrary length.. have a list of arbitrary length and I need to split it up into equal size chunks and operate on it. There are some obvious..
http://stackoverflow.com/questions/3455456/what-kinds-of-patterns-could-i-enforce-on-the-code-to-make-it-easier-to-translat bad news is that machinery has a zillion assumptions built into it most of which you won't discover until you try to wrestle.. of which you won't discover until you try to wrestle it into doing something else. At that point you find out the machinery..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python reduce will have the same overhead copying the items into the list that's being extended. chain will only incur this same..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code it can add up fast. What you can do is convert closedlist into a set object. This keeps hashes of its items so the in operator.. items so you will have to change your configurations into tuples instead of lists. If the order of closedlist is crucial..
What is the most “pythonic” way to iterate over a list in chunks? http://stackoverflow.com/questions/434287/what-is-the-most-pythonic-way-to-iterate-over-a-list-in-chunks right though. Related question How do you split a list into evenly sized chunks in Python list python chunks share improve..
What is the best way to remove accents in a python unicode string? http://stackoverflow.com/questions/517923/what-is-the-best-way-to-remove-accents-in-a-python-unicode-string answer for this. It transliterates any unicode string into the closest possible representation in ascii text. share improve..
Convert XML/HTML Entities into Unicode String in Python http://stackoverflow.com/questions/57708/convert-xml-html-entities-into-unicode-string-in-python XML HTML Entities into Unicode String in Python I'm doing some web scraping and sites.. as the 16 bit 01ce. I want to convert the html entity into the value u' u01ce' python html entities share improve this..
Python: How do I pass a variable by reference? http://stackoverflow.com/questions/986006/python-how-do-i-pass-a-variable-by-reference mutable but others aren't So If you pass a mutable object into a method the method gets a reference to that same object and.. you could create a class to hold your value and pass it into the function or use an existing class like a list def use_a_wrapper_to_simulate_pass_by_reference..
Why is SQLAlchemy insert with sqlite 25 times slower than using sqlite3 directly? http://stackoverflow.com/questions/11769366/why-is-sqlalchemy-insert-with-sqlite-25-times-slower-than-using-sqlite3-directly for i in range n row 'NAME ' str i c.execute INSERT INTO customer name VALUES row conn.commit print sqlite3 Total time.. for i in range n row 'NAME ' str i c.execute INSERT INTO customer name VALUES row conn.commit print sqlite3 Total time..
In Python, after I INSERT Into mysqldb, how do I get the “id”? http://stackoverflow.com/questions/2548493/in-python-after-i-insert-into-mysqldb-how-do-i-get-the-id &ldquo id&rdquo The primary key. cursor.execute INSERT INTO mytable height VALUES s height My table has 2 columns id primary..
Importing a CSV file into a sqlite3 database table using Python http://stackoverflow.com/questions/2887878/importing-a-csv-file-into-a-sqlite3-database-table-using-python to_db i 'col1' i 'col2' for i in dr cur.executemany INSERT INTO t col1 col2 VALUES to_db con.commit share improve this answer..
Merge SQLite files into one db file, and 'begin/commit' question http://stackoverflow.com/questions/3689694/merge-sqlite-files-into-one-db-file-and-begin-commit-question ' sqlite3.Cursor object at 0x0104B020 cur.execute 'INSERT INTO test VALUES 1 ' sqlite3.Cursor object at 0x0104B020 cur.execute..
Postgres: INSERT if does not exist already http://stackoverflow.com/questions/4069718/postgres-insert-if-does-not-exist-already Python to write to a postgres database sql_string INSERT INTO hundred name name_slug status VALUES sql_string hundred ' hundred_slug.. SET billed 'TRUE' WHERE invoiceid '12345' ELSE INSERT INTO invoices invoiceid billed VALUES '12345' 'TRUE' END IF But firstly.. nice way of doing conditional insert in PostgreSQL INSERT INTO example_table id name SELECT 1 'John' WHERE NOT EXISTS SELECT..
http://stackoverflow.com/questions/5942402/python-csv-to-sqlite field4 field5 in reader cur.execute 'INSERT OR IGNORE INTO mytable field2 field4 VALUES ' field2 field4 Everything works..
How do you escape strings for SQLite table/column names in Python? http://stackoverflow.com/questions/6514274/how-do-you-escape-strings-for-sqlite-table-column-names-in-python CREATE TABLE foo bar connection.execute INSERT INTO foo bar VALUES cow print list connection.execute SELECT from..
http://stackoverflow.com/questions/775296/python-mysql-with-variables insert 6 variables into the table. cursor.execute INSERT INTO Songs SongName SongArtist SongAlbum SongGenre SongLength SongLocation.. song' 'artist' 'some band' etc... cursor.execute INSERT INTO Songs SongName SongArtist SongAlbum SongGenre SongLength SongLocation..
Python & MySql: Unicode and Encoding http://stackoverflow.com/questions/8365660/python-mysql-unicode-and-encoding data json.loads qnadatajson cur.execute INSERT INTO yahoo_questions question_id question_subj question_content question_userId..
Complex foreign key constraint in SQLAlchemy http://stackoverflow.com/questions/8394177/complex-foreign-key-constraint-in-sqlalchemy integer PRIMARY KEY variable text choice_id integer INSERT INTO systemvariables variable_id variable VALUES 1 'var1' 2 'var2'.. REFERENCES variableoptions option_id variable_id INSERT INTO variableoptions VALUES 1 'var1_op1' 1 2 'var1_op2' 1 3 'var1_op3'.. has to be done together in a transaction BEGIN INSERT INTO systemvariables VALUES 1 'var1' 2 2 'var2' 5 3 'var3' 6 INSERT..
How to use variables in SQL statement in Python? http://stackoverflow.com/questions/902408/how-to-use-variables-in-sql-statement-in-python I have the following Python code cursor.execute INSERT INTO table VALUES var1 var2 var3 where var1 is an integer var2 var3.. sql share improve this question cursor.execute INSERT INTO table VALUES s s s var1 var2 var3 The database API does proper..
Creating a logging handler to connect to Oracle? http://stackoverflow.com/questions/935930/creating-a-logging-handler-to-connect-to-oracle self.dsn self.uid self.pwd self.SQL INSERT INTO Events Created RelativeCreated Name LogLevel LevelText..
Is there an easy way to request a URL in python and NOT follow redirects? http://stackoverflow.com/questions/110498/is-there-an-easy-way-to-request-a-url-in-python-and-not-follow-redirects python http redirect share improve this question Dive Into Python has a good chapter on handling redirects with urllib2...
How can I consume a WSDL (SOAP) web service in Python? http://stackoverflow.com/questions/115316/how-can-i-consume-a-wsdl-soap-web-service-in-python based web service in Python. I have looked at the Dive Into Python code but the SOAPpy module does not work under Python..
Representing and solving a maze given an image http://stackoverflow.com/questions/12995434/representing-and-solving-a-maze-given-an-image a tree from the image Any ideas TL DR Best way to parse Into what data structure How would said structure help hinder solving..
http://stackoverflow.com/questions/1508906/python-2-6-or-python-3-1 3.1. And there is no better place to start than Dive Into Python 3 as has been mentioned by Clint. Good luck UPDATE 2011..
Solving non-linear equations in python http://stackoverflow.com/questions/19542801/solving-non-linear-equations-in-python keep it concrete at the moment F_i d e X_i f Y_i g Z_i Into F_0 1 X_0 Y_0 Z_0 d F_1 1 X_1 Y_1 Z_1 e F_2 1 X_2 Y_2 Z_2 f..
Why do we need tuples in Python (or any immutable data type)? http://stackoverflow.com/questions/2174124/why-do-we-need-tuples-in-python-or-any-immutable-data-type data type I've read several python tutorials Dive Into Python for one and the language reference on Python.org I don't..
How to know the path of the running script in Python? http://stackoverflow.com/questions/2259503/how-to-know-the-path-of-the-running-script-in-python path share improve this question Per the great Dive Into Python import sys os print 'sys.argv 0 ' sys.argv 0 1 pathname..
http://stackoverflow.com/questions/2283034/python-for-a-perl-programmer landmines are well worth a read. Personally I found Dive Into Python annoying and patronising but it's freely available online..
In Python, after I INSERT Into mysqldb, how do I get the “id”? http://stackoverflow.com/questions/2548493/in-python-after-i-insert-into-mysqldb-how-do-i-get-the-id Python after I INSERT Into mysqldb how do I get the &ldquo id&rdquo The primary key. cursor.execute..
Learning Python coming from PHP http://stackoverflow.com/questions/2561362/learning-python-coming-from-php takes quite a bit of time to master. The suggest of Dive Into Python is valid although the Python 3 version is only for newbies..
http://stackoverflow.com/questions/276184/wcf-and-python you're using then. Take a look at this chapter in Dive Into Python . It will show you how to make SOAP calls. I know of..
Dynamic module import in Python http://stackoverflow.com/questions/301134/dynamic-module-import-in-python
Scipy interpolation on a numpy array http://stackoverflow.com/questions/3057015/scipy-interpolation-on-a-numpy-array 20000 3.9 7.3 10.0 13.1 15.9 20000 4.5 9.2 12.2 14.8 18.2 Into index coordinates 0 1 2 3 4 0 3.6 6.5 9.1 11.5 13.8 1 3.9..
How do I concisely implement multiple similar unit tests in the Python unittest framework? http://stackoverflow.com/questions/347109/how-do-i-concisely-implement-multiple-similar-unit-tests-in-the-python-unittest __main__ unittest.main I got the idea for this from Dive Into Python . There it's not a list of functions being tested but..
Unresolved Import Issues with PyDev and Eclipse http://stackoverflow.com/questions/4631377/unresolved-import-issues-with-pydev-and-eclipse Java plenty. I am trying to work through some of the Dive Into Python examples and this feels like an extremely trivial problem..
How to get the URL of a redirect with Python http://stackoverflow.com/questions/4902523/how-to-get-the-url-of-a-redirect-with-python best way is to subclass urllib2.HTTPRedirectHandler . Dive Into Python's chapter on redirects may be helpful. share improve..
How to include external Python code to use in other files? http://stackoverflow.com/questions/714881/how-to-include-external-python-code-to-use-in-other-files from Math import Edit Here is a good chapter from Dive Into Python that goes a bit more in depth on this topic. share improve..
http://stackoverflow.com/questions/7604636/better-to-try-something-and-catch-the-exception-or-test-if-its-possible-first use of exceptions which you handle is a phrase from Dive Into Python . Your example not only handles the exception gracefully..
Changing user agent on urllib2.urlopen http://stackoverflow.com/questions/802134/changing-user-agent-on-urllib2-urlopen Setting the User Agent from everyone's favorite Dive Into Python . The short story You can use Request.add_header to do..
http://stackoverflow.com/questions/92230/python-beyond-the-basics are great ressources for advanced Python programming Dive Into Python read it for free Online python cookbooks e.g. here and..
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