Anne questions

• python: replace zeros by previous nonzero value
• Pandas: remove leading and trailing zero values from series
• pandas read_csv: ignore trailing lines with empty data
• Pandas dataframe: Check if data is monotonically decreasing
• pandas series: change order of index
• pandas: convert datetime to end-of-month
• multiprocessing in python - sharing large object (e.g. pandas dataframe) between multiple processes
• Memory error when using pandas read_csv
• Pandas groupby: How to get a union of strings

Anne answers