Iterating over nested for loop-CodePudding

I am trying to iterate over multiple collections of values and the code is performing as expected except I would like to iterate over each account_id once, instead of multiple times for each reach.

Essentially I want each region to correlate with a single account_id. YUL > 11111111111; iad > 11111111222; gru > 99111111111.

For example here's my code below.

buildings = [i for i in range(1,90)]
regions = ['yul', 'iad', 'gru']
accounts = ['11111111111', '11111111222', '99111111111']

def testing(buildings, regions):
    accountIdx = -1
    for account in accounts:          
        if accountIdx < 0:
            print('First iteration')
        accountIdx  = 1
        curr_account = accounts[accountIdx] # Counter variable   after each iteration
        print(curr_account)
        for region in regions:               
            for building in buildings:
               print('%s%s in account:%s'%(region, building,curr_account))

This is what I would like. It has the same thing for accounts 11111111222 and 99111111111 too.

Current Output: iad**<1-89>** in account:11111111111 
                gru**<1-89>** in account: 11111111111
                yul**<1-89>** in account: 11111111111





Expected Output: iad**<1-89>** in account:11111111111 
                 gru**<1-89>** in account: 11111111222
                 yul**<1-89>** in account: 99111111111

I would like the output to be like this above, with each region correlating with a single account_id, instead of iterating over each region with the SAME account Id.

Does anyone know how this solution can be achieved?

CodePudding user response：

you can use zip to bind the corresponding index of list together and achive your solution

# your code goes here
buildings = [i for i in range(1,90)]
regions = ['yul', 'iad', 'gru']
accounts = ['11111111111', '11111111222', '99111111111']

def testing(buildings, regions):

    for account, building, region in zip(accounts, buildings, regions):
               print('%s%s in account:%s'%(region, building, account))
          
testing(buildings, regions)

CodePudding user response：

Use zip

    buildings = [i for i in range(1,90)]
    regions = ['yul', 'iad', 'gru']
    accounts = ['11111111111', '11111111222', '99111111111']
    
    for region, curr_account in zip(regions,accounts):
        print(f"{region} {building}  in account: {curr_account}")

Each region corresponds to an account by the order, they are positioned in the lists.
yul : 11111111111
iad : 11111111222
gru : 11111111222