Python pymysql - iterate through mysql table key and value

Question

I am new to python pymysql (I used before Ruby with Mysql2 gem), I want to get the key and the value from mysql table and do some actions:

For example:

dbconnection = pymysql.connect(host=mysql_hostname, user=mysql_username, password=mysql_pass, db=mysql_schema, charset='utf8mb4', cursorclass=pymysql.cursors.DictCursor)
cursor = dbconnection.cursor()
_SQL = (""" 
        select * ...
        """)

cursor.execute(_SQL)
result = cursor.fetchall()
for row in result:
    print(row)
    print("\n")
    # How can I access each key and each value for example: STATUS is the value and 3 is the key
    # I want to do something like this: 
    #'if the value of 'CAP' > 1: change the value of status where the ID key
    #   cursor.execute("UPDATE <table> SET row[STATUS]='1' WHERE ID='row[ID]'")

Output:

{'STATUS': 3, 'ID': 10, 'CAP': 1}
{'STATUS': 3, 'ID': 11, 'CAP': 2}
{'STATUS': 3, 'ID': 12, 'CAP': 3}

Thanks

Answer 1

A row is simply a dictionary. So you can use .items() to generate a sequence of key and value:

for row in result:
    for key,value in row.items():
        print('The key is %s'%key)
        print('The value is %s'%value)

Answer 2

The code you are looking for is this:

for row in result:
    if row["CAP"] > 1:
        cursor.execute("UPDATE <table> SET row[STATUS]='1' WHERE ID='row[ID]'")
    else:
        continue