Dheeraj questions

Dheeraj answers

• How exactly to set up and use environment variables on mac
• How to sum data.frame column values?
• Pandas: Difference between pivot and pivot_table. Why is only pivot_table working?
• Read Headers from Data Source in an AWS Glue Job
• How to convert string into timestamp in Presto (Athena)?
• How to change app version in ionic framework?
• Import error: DLL load failed in Jupyter notebook but working in .py file