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Encrypt & Decrypt using PyCrypto AES 256
... IV.
iv = Random.new().read(AES.block_size)
# Convert the IV to a Python integer.
iv_int = int(binascii.hexlify(iv), 16)
# Create a new Counter object with IV = iv_int.
ctr = Counter.new(AES.block_size * 8, initial_value=iv_int)
# Create AES-CTR cipher.
aes = AES.new(...
Split Strings into words with multiple word boundary delimiters
...word character (a-z etc.) repeated one or more times". There's a HOWTO on Python regular expressions here: amk.ca/python/howto/regex
– RichieHindle
Jul 4 '09 at 19:44
334
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JSON serialization of Google App Engine models
...r strings and integers for me so far: developers.google.com/appengine/docs/python/datastore/… So I'm not sure you need to reinvent the wheel to serialize to json: json.dumps(db.to_dict(Photo))
– gentimouton
Jul 5 '12 at 22:49
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C++ Build Systems - What to use? [closed]
...ystem will be as bullet-proof as Scons. But, it's slow. It is written in Python and we've extended the interface for our "workspace-organization" (where we merely specify module dependencies), and that is part of the Scons design intent (this type of extension through Python). Convenient, but bui...
Multiple linear regression in Python
I can't seem to find any python libraries that do multiple regression. The only things I find only do simple regression. I need to regress my dependent variable (y) against several independent variables (x1, x2, x3, etc.).
...
Get the generated SQL statement from a SqlCommand object?
...bType.Time:
case SqlDbType.VarChar:
case SqlDbType.Xml:
case SqlDbType.Date:
case SqlDbType.DateTime:
case SqlDbType.DateTime2:
case SqlDbType.DateTimeOffset:
retval = "'" + sp.Value.ToString().Replace("'", "''")...
JPA : How to convert a native query result set to POJO class collection
...se Jedi needs not to be an mapped entity. It can be a regular POJO.
Using XML Mapping
I am one of those that find adding all these @SqlResultSetMapping pretty invasive in my entities, and I particularly dislike the definition of named queries within entities, so alternatively I do all this in the ...
TypeError: ObjectId('') is not JSON serializable
... back from MongoDB after querying an aggregated function on document using Python, It returns valid response and i can print it but can not return it.
...
How to override to_json in Rails?
...Rails 3, override serializable_hash instead of as_json. This will get your XML formatting for free too :)
This took me forever to figure out. Hope that helps someone.
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vector::at vs. vector::operator[]
...nput is indeed a good example. Imagine you want to semantically analyze an XML data-structure which uses indices to refer to some kind of resource you internally store in a std::vector. Now the XML tree is a tree, so your probably want to use recursion to analyze it. Deep down, in the recursion, the...