TheLazyScripter questions

TheLazyScripter answers

• how to only import module if necessary and only once
• Fluent interface with Python
• How to print the console to a text file AFTER the program finishes (Python)?
• AttributeError, 'dict' object has no attribute 'iteritems'; Flask-SQLAlchemy error while committing to database
• How to send print job to printer in python
• How to check if a file is already opened (in the same process)
• Pandas read_csv dtype specify all columns but one
• What is the point of re-raising exceptions?