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Summer of Code/2013/Turtle Blocks Python export (view source)
Revision as of 09:42, 29 April 2013
, 09:42, 29 April 2013+project description
I am located in Stuttgart and Tübingen, Germany. My time zone is Central European Summer Time (CEST) or UTC+02:00 during summer.
I am located in Stuttgart and Tübingen, Germany. My time zone is Central European Summer Time (CEST) or UTC+02:00 during summer.
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=== Have you participated in an open-source project before? ===
=== Have you participated in an open-source project before? ===
== About my Project ==
== About my Project ==
=== What is the name of your project? ===
=== Project description ===
''What is the name of your project? Describe your project in 10-20 sentences. What are you making? Who are you making it for, and why do they need it? What technologies (programming languages, etc.) will you be using?''
'''Turtle Blocks Python export''' lets the user export their programming project from the Turtle Blocks activity to a Python script. The generated Python code can be run outside of Turtle Blocks, for example from the command line or in the Pippy IDE.
This tool is designed for users who are already proficient Turtle Block programmers and want to move on to text-based programming. It helps them transfer their knowledge and skills from block-based to text-based programming, as they can see their own creations in a new programming language. Thus, they can focus on the new language rather than the content of the program.
The Python export functionality will be implemented in pure Python, drawing on the internal block code interpreter of Turtle Blocks to convert the blocks to a representation of the program flow. I will then use the <code>ast</code> module<ref>http://docs.python.org/2.6/library/ast.html</ref> to build the Python syntax tree from this representation. In order to serialize the syntax tree to a string, which can then be written to a file, I plan to use either the <code>codegen</code> module<ref>http://dev.pocoo.org/hg/sandbox/file/b2aea937f5bb/ast/codegen.py</ref><ref>https://gist.github.com/mattbasta/791312</ref> or the <code>unparse</code> module.<ref>http://svn.python.org/view/python/trunk/Demo/parser/unparse.py?view=markup</ref>
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The exported Python code will need to import a few classes from Turtle Blocks to set up a window etc. I will isolate these classes from the Turtle Blocks code, so it can easily be imported into the generated code.
=== What is the timeline for development of your project? ===
=== What is the timeline for development of your project? ===
''The Summer of Code work period is June 17 - September 23; tell us what you will be working on each week. (As the summer goes on, you and your mentor will adjust your schedule, but it's good to have a plan at the beginning so you have an idea of where you're headed.) Note that you should probably plan to have something "working and 90% done" by the midterm evaluation (August 2); the last steps always take longer than you think, and we will consider cancelling projects which are not mostly working by then.''
''The Summer of Code work period is June 17 - September 23; tell us what you will be working on each week. (As the summer goes on, you and your mentor will adjust your schedule, but it's good to have a plan at the beginning so you have an idea of where you're headed.) Note that you should probably plan to have something "working and 90% done" by the midterm evaluation (August 2); the last steps always take longer than you think, and we will consider cancelling projects which are not mostly working by then.''
=== My Backround ===
=== My Backround ===
''Convince us, in 5-15 sentences, that you will be able to successfully complete your project in the timeline you have described. This is usually where people describe their past experiences, credentials, prior projects, schoolwork, and that sort of thing, but be creative. Link to prior work or other resources as relevant.''
''Convince us, in 5-15 sentences, that you will be able to successfully complete your project in the timeline you have described. This is usually where people describe their past experiences, credentials, prior projects, schoolwork, and that sort of thing, but be creative. Link to prior work or other resources as relevant.''
=== Additional information ===
=== Additional information ===
''Is there anything else we should have asked you or anything else that we should know that might make us like you or your project more?''
''Is there anything else we should have asked you or anything else that we should know that might make us like you or your project more?''
== References ==
<references />