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python Programming Glossary: keyDifferences between isinstance() and type() in python http://stackoverflow.com/questions/1549801/differences-between-isinstance-and-type-in-python several useful ABCs. For the purpose of this answer the key thing to retain about ABCs beyond an arguably more natural placement..
Understanding kwargs in Python http://stackoverflow.com/questions/1769403/understanding-kwargs-in-python kwargs to let your functions take an arbitrary number of keyword arguments def print_keyword_args kwargs ... # kwargs is.. take an arbitrary number of keyword arguments def print_keyword_args kwargs ... # kwargs is a dict of the keyword args passed.. print_keyword_args kwargs ... # kwargs is a dict of the keyword args passed to the function ... for key value in kwargs.iteritems..
In Python, how do I determine if an object is iterable? http://stackoverflow.com/questions/1952464/in-python-how-do-i-determine-if-an-object-is-iterable if an object is list like and not string like then the key is the attributes __getitem__ and __iter__ In 9 hasattr 1 2..
http://stackoverflow.com/questions/261638/how-do-i-protect-python-code protect the code Are there real secrets in there such as a key for symmetric encryption of bank transfers or are you just being..
http://stackoverflow.com/questions/3455456/what-kinds-of-patterns-could-i-enforce-on-the-code-to-make-it-easier-to-translat the manual part of the translation activity. Another key consideration is size of code to be translated. It takes a lot..
How can I represent an 'Enum' in Python? http://stackoverflow.com/questions/36932/how-can-i-represent-an-enum-in-python sequential range len sequential named reverse dict value key for key value in enums.iteritems enums 'reverse_mapping' reverse.. range len sequential named reverse dict value key for key value in enums.iteritems enums 'reverse_mapping' reverse return..
Does Python have a built in function for string natural sort? http://stackoverflow.com/questions/4836710/does-python-have-a-built-in-function-for-string-natural-sort 'elm0' 'elm1' 'elm10' 'elm13' 'elm9' natsort.natsorted x key lambda y y.lower 'elm0' 'elm1' 'Elm2' 'elm9' 'elm10' 'Elm11'..
http://stackoverflow.com/questions/509211/pythons-slice-notation a start end step # start through not past end by step The key point to remember is that the end value represents the first..
Python read a single character from the user http://stackoverflow.com/questions/510357/python-read-a-single-character-from-the-user character from the user input For instance they press one key at the terminal and it is returned. Sort of like getch . I know..
Python: Sort a dictionary by value http://stackoverflow.com/questions/613183/python-sort-a-dictionary-by-value a numeric field. The string field is unique so that is the key of the dictionary. I can sort on the keys but how can I sort.. so that is the key of the dictionary. I can sort on the keys but how can I sort based on the values Note I have read this.. operator x 1 2 3 4 4 3 2 1 0 0 sorted_x sorted x.iteritems key operator.itemgetter 1 sorted_x will be a list of tuples sorted..
What's the difference between list and tuples in Python? http://stackoverflow.com/questions/626759/whats-the-difference-between-list-and-tuples-in-python 42 11 # page number line number You can then use this as a key in a dictionary to store notes on locations. A list on the other..
Simple Digit Recognition OCR in OpenCV-Python http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python the bounding rectangle around one letter and wait for key press. This time we press the digit key corresponding to the.. and wait for key press. This time we press the digit key corresponding to the letter in box. d Once corresponding digit.. to the letter in box. d Once corresponding digit key is pressed it resizes this box to 10x10 and saves 100 pixel..
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 customer id INTEGER NOT NULL name VARCHAR 255 PRIMARY KEY id conn.commit return conn def test_sqlite3 n 100000 dbname.. customer id INTEGER NOT NULL name VARCHAR 255 PRIMARY KEY id conn.commit return conn def test_sqlite3 n 100000 dbname..
Parameter substitution for a SQLite “IN” clause http://stackoverflow.com/questions/1309989/parameter-substitution-for-a-sqlite-in-clause memory c.execute 'CREATE TABLE distro id INTEGER PRIMARY KEY AUTOINCREMENT name TEXT ' for name in 'Ubuntu Fedora Puppy DSL..
how to convert base64 /radix64 public key to a pem format in python http://stackoverflow.com/questions/1387867/how-to-convert-base64-radix64-public-key-to-a-pem-format-in-python # Write PEM header buffer.write ' BEGIN RSA PUBLIC KEY n' in_block 0 in_body 0 for line in pgp_key.split ' n' if line.startswith.. pgp_key.split ' n' if line.startswith ' BEGIN PGP PUBLIC KEY BLOCK ' in_block 1 elif in_block and line.strip '' in_body 1.. 1 elif in_block and line.startswith ' END PGP PUBLIC KEY BLOCK ' # No checksum ignored for now break elif in_body and..
Using a WHERE ___ IN ___ statement http://stackoverflow.com/questions/14245396/using-a-where-in-statement '''CREATE TABLE IF NOT EXISTS tab _id integer PRIMARY KEY AUTOINCREMENT obj text NOT NULL ''' I'm trying to do something..
Understanding performance difference http://stackoverflow.com/questions/17640235/understanding-performance-difference node while curr is not root yield curr 2 # yield the curr KEY curr curr 1 # move to next node def iteritems self 'od.iteritems..
Executing “SELECT … WHERE … IN …” using MySQLdb http://stackoverflow.com/questions/4574609/executing-select-where-in-using-mysqldb NOT NULL AUTO_INCREMENT `bar` varchar 10 NOT NULL PRIMARY KEY `fooid` Query OK 0 rows affected 0.01 sec mysql INSERT into..
How do you verify an RSA SHA1 signature in Python? http://stackoverflow.com/questions/544433/how-do-you-verify-an-rsa-sha1-signature-in-python on the string. The key looks like this BEGIN PUBLIC KEY MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDfG4IuFO2h LdDNmonwGNw5srW.. VvXw13PLINE YptjkQIDAQAB END PUBLIC KEY I've been reading the pycrypto docs for a while but I can't..
How to obtain the keycodes in Python http://stackoverflow.com/questions/575650/how-to-obtain-the-keycodes-in-python interface. NOT NEED THE CHARACTER CODE. I NEED TO KNOW THE KEY CODE. Ex ord 'a' ord 'A' # 97 65 someFunction 'a' someFunction.. function. You should filter out keypresses e.EventType KEY_EVENT and look for e.Event.KeyEvent.wVirtualKeyCode value. Example..
Complex foreign key constraint in SQLAlchemy http://stackoverflow.com/questions/8394177/complex-foreign-key-constraint-in-sqlalchemy TEMP TABLE systemvariables variable_id integer PRIMARY KEY variable text choice_id integer INSERT INTO systemvariables.. TEMP TABLE variableoptions option_id integer PRIMARY KEY option text variable_id integer REFERENCES systemvariables variable_id.. ADD CONSTRAINT systemvariables_choice_id_fk FOREIGN KEY choice_id variable_id REFERENCES variableoptions option_id variable_id..
using pyodbc on linux to insert unicode or utf-8 chars in a nvarchar mssql field http://stackoverflow.com/questions/947077/using-pyodbc-on-linux-to-insert-unicode-or-utf-8-chars-in-a-nvarchar-mssql-field NOT NULL IDENTITY 1 1 name NVARCHAR 200 NULL PRIMARY KEY id ''' con.commit Everything WORKS up to this point. I have..
How to do PGP in Python (generate keys, encrypt/decrypt) http://stackoverflow.com/questions/1020320/how-to-do-pgp-in-python-generate-keys-encrypt-decrypt at least for my purposes I use it to do the following Key management generation listing export etc. Import keys from an..
How to solve the “Mastermind” guessing game? http://stackoverflow.com/questions/1185634/how-to-solve-the-mastermind-guessing-game an essay python algorithm share improve this question Key tools entropy greediness branch and bound Python generators..
http://stackoverflow.com/questions/1319763/key-ordered-dict-in-python ordered dict in python I am looking for a solid implementation..
http://stackoverflow.com/questions/136734/key-presses-in-python Presses in Python Is it possible to make it appear to a system.. Notepad # select another application wsh.SendKeys a # send the keys you want Search for documentation of the..
Should I use urllib or urllib2 or requests? http://stackoverflow.com/questions/2018026/should-i-use-urllib-or-urllib2-or-requests style SSL Verification Basic Digest Authentication Elegant Key Value Cookies Automatic Decompression Unicode Response Bodies..
Filtering by entity key name in Google App Engine on Python http://stackoverflow.com/questions/2544565/filtering-by-entity-key-name-in-google-app-engine-on-python GQL you do it like this gql SELECT FROM User WHERE __key__ Key 'User' 'abc' db.GqlQuery gql But how would you now use filter.. this question from google.appengine.api.datastore import Key query.filter __key__ Key.from_path 'User' 'abc' share improve..
Sqlite / SQLAlchemy: how to enforce Foreign Keys? http://stackoverflow.com/questions/2614984/sqlite-sqlalchemy-how-to-enforce-foreign-keys SQLAlchemy how to enforce Foreign Keys The new version of SQLite has the ability to enforce Foreign.. new version of SQLite has the ability to enforce Foreign Key constraints but for the sake of backwards compatibility you.. sqlalchemy.interfaces import PoolListener class ForeignKeysListener PoolListener def connect self dbapi_con con_record..
How can I print a literal “{}” characters in python string and also use .format on it? http://stackoverflow.com/questions/5466451/how-can-i-print-a-literal-characters-in-python-string-and-also-use-format use .format on it x Hello 0 print x.format 42 gives me Key Error Hello I want to print the output Hello 42 python string..
Key Order in Python Dicionaries http://stackoverflow.com/questions/5629023/key-order-in-python-dicionaries Order in Python Dicionaries Code d 'a' 0 'b' 1 'c' 2 l d.keys..
Getting started with secure AWS CloudFront streaming with Python http://stackoverflow.com/questions/6549787/getting-started-with-secure-aws-cloudfront-streaming-with-python video.mp4 should give MissingKey because the URL is not signed basic_distribution.cloudfront.net.. and click on the Security Credentials link. Click on the Key Pairs tab then click Create a New Key Pair . This will generate.. link. Click on the Key Pairs tab then click Create a New Key Pair . This will generate a new key pair for you and automatically..
http://stackoverflow.com/questions/7782721/java-raw-audio-output loopable tone that can be heard by clicking on the Code Key. It uses a Clip to loop the sound as well as for access to the.. new EmptyBorder 4 4 4 4 JButton bPlay new JButton Code Key bPlay.setToolTipText Click to make tone Dimension preferredSize.. int preferredSize.getHeight 3 TODO comment out to try KeyListener bPlay.setFocusable false bPlay.addKeyListener new KeyAdapter..
http://stackoverflow.com/questions/7933596/django-dynamic-model-fields itself but metadata about the fields. site models.ForeignKey Site default settings.SITE_ID name models.CharField max_length.. Meta abstract True Note how CustomDataField has a ForeignKey to Site each Site will have a different set of custom data fields.. CustomDataValue custom_field models.ForeignKey UserCustomDataField user models.ForeignKey User related_name..
Decrypting strings in Python that were encrypted with MCRYPT_RIJNDAEL_256 in PHP http://stackoverflow.com/questions/8217269/decrypting-strings-in-python-that-were-encrypted-with-mcrypt-rijndael-256-in-php in PHP that encrypts text as follows function encrypt text Key MyKey return trim base64_encode mcrypt_encrypt MCRYPT_RIJNDAEL_256.. that encrypts text as follows function encrypt text Key MyKey return trim base64_encode mcrypt_encrypt MCRYPT_RIJNDAEL_256.. trim base64_encode mcrypt_encrypt MCRYPT_RIJNDAEL_256 Key text MCRYPT_MODE_ECB mcrypt_create_iv mcrypt_get_iv_size MCRYPT_RIJNDAEL_256..
Complex foreign key constraint in SQLAlchemy http://stackoverflow.com/questions/8394177/complex-foreign-key-constraint-in-sqlalchemy foreign key constraint systemvariables_choice_id_fk DETAIL Key choice_id variable_id 4 1 is not present in table variableoptions..
How do I run Python code from Sublime Text 2? http://stackoverflow.com/questions/8551735/how-do-i-run-python-code-from-sublime-text-2 What to do when Ctrl Break does not work go to Preferences Key Bindings User and paste the line below keys ctrl shift c command..
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