I have a dataframe: df = pd.DataFrame({'id': [1,2,3,4,5], 'week': [201613, 201714, 201715, 201716, 201717]}) which looks like: id week 0 1 201613 1 2 201714 2 3 201715 3 4 201716 4 5 201717 The week column is telling the week of a particular year. For example 201613 means 13th week of 2016. I wish to add a new column week_timestamp which should give me the time stamp of Monday this week. it should give me something like 2016–03–28 00:00:00for 201613. How can I do this in pandas? Continue reading...