python - how to remove the elements of some elements of particular indies from both the lists? -


i have got 2 lists

dt_dates= [datetime.datetime(2013, 4, 6, 0, 0), datetime.datetime(2013, 5, 4, 0, 0), datetime.datetime(2013, 6, 26, 0, 0), datetime.datetime(2013, 7, 26, 0, 0), datetime.datetime(2013, 9, 5, 0, 0), datetime.datetime(2013, 10, 7, 0, 0), datetime.datetime(2013, 10, 12, 0, 0), datetime.datetime(2014, 4, 12, 0, 0), datetime.datetime(2014, 5, 10, 0, 0), datetime.datetime(2014, 6, 12, 0, 0), datetime.datetime(2014, 7, 19, 0, 0), datetime.datetime(2014, 8, 15, 0, 0), datetime.datetime(2014, 9, 17, 0, 0), datetime.datetime(2015, 4, 21, 0, 0), datetime.datetime(2015, 5, 28, 0, 0), datetime.datetime(2015, 6, 26, 0, 0)]  param=['14', '8', '24', '21.5', '28.5', '9', '9.5', '14.5', '5.5', '21', '19', '25', '25', '18', '12', '32']

i have code filters list according end date , start date. user enters date range 1/1/2014 12/31/2014 need dates t hat falls between range , parameters remaining dates.

dt_dates_filtered= [datetime.datetime(2014, 4, 12, 0, 0), datetime.datetime(2014, 5, 10, 0, 0), datetime.datetime(2014, 6, 12, 0, 0), datetime.datetime(2014, 7, 19, 0, 0), datetime.datetime(2014, 8, 15, 0, 0), datetime.datetime(2014, 9, 17, 0, 0)]

is desired output

parameters_filtered=['14.5', '5.5', '21', '19', '25', '25']

i wrote code:

for i,v in enumerate (dt_dates):     if t1[i]:         filtered_parameter.append(param[i])

whiere t1 dates between start date , end date

you doing wrongly, should iterate on both of them , create lists want.

you can use zip function this.

example -

dt_dates= [datetime.datetime(2013, 4, 6, 0, 0), datetime.datetime(2013, 5, 4, 0, 0), datetime.datetime(2013, 6, 26, 0, 0), datetime.datetime(2013, 7, 26, 0, 0), datetime.datetime(2013, 9, 5, 0, 0), datetime.datetime(2013, 10, 7, 0, 0), datetime.datetime(2013, 10, 12, 0, 0), datetime.datetime(2014, 4, 12, 0, 0), datetime.datetime(2014, 5, 10, 0, 0), datetime.datetime(2014, 6, 12, 0, 0), datetime.datetime(2014, 7, 19, 0, 0), datetime.datetime(2014, 8, 15, 0, 0), datetime.datetime(2014, 9, 17, 0, 0), datetime.datetime(2015, 4, 21, 0, 0), datetime.datetime(2015, 5, 28, 0, 0), datetime.datetime(2015, 6, 26, 0, 0)] param=['14', '8', '24', '21.5', '28.5', '9', '9.5', '14.5', '5.5', '21', '19', '25', '25', '18', '12', '32']  dt_dates_filtered= [] parameters_filtered=[]  start_date = datetime.datetime(2014,1,1,0,0,0) end_date = datetime.datetime(2014,12,31,0,0,0)  x in zip(dt_dates, param):     if start_date < x[0] < end_date:             dt_dates_filtered.append(x[0])             parameters_filtered.append(x[1])  dt_dates_filtered >>> [datetime.datetime(2014, 4, 12, 0, 0), datetime.datetime(2014, 5, 10, 0, 0), datetime.datetime(2014, 6, 12, 0, 0), datetime.datetime(2014, 7, 19, 0, 0), datetime.datetime(2014, 8, 15, 0, 0), datetime.datetime(2014, 9, 17, 0, 0)] parameters_filtered >>> ['14.5', '5.5', '21', '19', '25', '25']

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