How do you search through a row (Row 1) of a CSV file, but search through the next row (Row 2) at the same time? - python-3.x

Question

Imagine there are THREE columns and a certain number of rows in a dataframe. First column are random values, second column are Names, third column are Ages.
I want to search through every row (First Row) of this dataframe and find when value 1 appears in the first column. Then simultaneously, I want to know that if value 1 does indeed exist in the column, does value 2 appear in the SAME column but in the next row.
If this is the case. Copy First Rows, Value, Name And Age into an empty dataframe. Every time this condition is met, copy these rows into an empty dataframe
EmptyDataframe = pd.DataFrame(columns['Name','Age'])
csvfile = pd.DataFrame(columns['Value', 'Name', 'Age'])
row_for_csv_dataframe = next(csv.iterrows())
for index, row_for_csv_dataframe in csv.iterrows():
if row_for_csv_dataframe['Value'] == '1':
# How to code this:
# if the NEXT row after row_for_csv_dataframe finds the 'Value' == 2
# then copy 'Age' and 'Name' from row_for_csv_dataframe into the empty DataFrame.

Answer 1

Assuming you have a dataframe data like this:
Value Name Age
0 1 Anne 10
1 2 Bert 20
2 3 Caro 30
3 2 Dora 40
4 1 Emil 50
5 1 Flip 60
6 2 Gabi 70
You could do something like this, although this is probably not the most efficient:
iterator1 = data.iterrows()
iterator2 = data.iterrows()
iterator2.__next__()
for current, next in zip(iterator1,iterator2):
if(current[1].Value==1 and next[1].Value==2):
print(current[1].Value, current[1].Name, current[1].Age)
And would get this result:
1 Anne 10
1 Flip 60