#57 Our take on Excel and Python
Python Bytes - En podcast af Michael Kennedy and Brian Okken - Mandage
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Brian #1: Testing Python 3 and 2 simultaneously with retox
- Anthony Shaw
- tox allows you to run the same tests in multiple configurations.
- For example, multiple Python interpreters (2 vs 3), or on different hardware, or using different options, etc.
- tox can also tests your packaging code (on by default, but can be disabled)
- detox allows multiple configurations to be tested in parallel with multiprocessing
- typically running all tests 2-4 times faster
- retox does this with a GUI
- also adds “watch” capability
Michael #2: Robo 3T / RoboMongo
- MongoDB GUI with embedded shell
- CLI interaction
- GUI when you want it
- No. 34 repository on GitHub
Brian #3: regular expressions
- Regular Expressions Practical Guide
- Python examples for some common expressions
- How to use the built in re package for email addresses, URLs, phone numbers
- substitution with
re.sub() - splitting a string with
re.split() - what some of the escape shortcuts mean, like
\wfor word,\sfor whitespace, etc. - iterating through matches with
re.finditer() - Using compiled expressions
- Regular Expressions for Data Scientists
- another great intro, that also talks about:
re.search()re.findall()- match groups
Michael #4: MongoEngine
- MongoEngine is a Document-Object Mapper (think ORM, but for document databases) for working with MongoDB from Python.
- Map classes to MongoDB (think SQLAlchemy but for document databases)
- Adds features lacking from MongoDB
- Schema
- Required fields
- Constraints
- Relationships
Brian #5: Introducing PrettyPrinter for Python
- a powerful, syntax-highlighting, and declarative pretty printer for Python 3.6
- goals
- Implement an algorithm that tries very hard to produce pretty output, even if it takes a bit more work.
- Implement a dead simple, declarative interface to writing your own pretty printers. Python developers rarely write
__repr__methods because they're a pain; no one will definitely write pretty printing rules for user-defined types unless it's super simple. - Implement syntax-highlighting that doesn't break on invalid Python syntax.
Michael #6: Excel and Python
- Replace VBA
- Python in Excel as the main scripting language
- They need feedback (fill out their survey, upvote the issue)
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