如何打印到同一行-For循环中的If语句

Question

Python 3 - I am using a for loop to print values from a dictionary. Some dictionaries within rawData have "RecurringCharges" as an empty list. I am checking to see if the list is empty and either populating with "0.0" if empty or the "Amount" if populated.

Creating the IF statement in my For Loop presents a new print statement and prints to a new line. I would like it to be one continuous line.

for each in rawData['ReservedInstancesOfferings']:
    print('PDX', ','
          , each['InstanceType'], ','
          , each['InstanceTenancy'], ','
          , each['ProductDescription'], ','
          , each['OfferingType'], ','
          , each['Duration'], ','
          , each['ReservedInstancesOfferingId'], ','
          , each['FixedPrice'], ',',
          )
    if not each['RecurringCharges']:
        print("0.0")
    else:
        print(each['RecurringCharges'][0].get('Amount'))

Answer 1

如果使用Python 3，请在每个打印语句的末尾添加一个逗号，然后添加end =“”，例如：

 print(each['RecurringCharges'][0].get('Amount'), end="")

Answer 2

I found the answer shortly after posting: include the parameter end='' in the first print statement.

for each in rawData['ReservedInstancesOfferings']:
    print('PDX', ','
          , each['InstanceType'], ','
          , each['InstanceTenancy'], ','
          , each['ProductDescription'], ','
          , each['OfferingType'], ','
          , each['Duration'], ','
          , each['ReservedInstancesOfferingId'], ','
          , each['FixedPrice'], ',', end=''
          )
    if not each['RecurringCharges']:
        print("0.0")
    else:
        print(each['RecurringCharges'][0].get('Amount'))

Answer 3

Instead of using the print function, use stdout!

import sys
sys.stdout.write('this is on a line ')
sys.stdout.write('and this is on that same line!')

With sys.stdout.write(), if you want a newline, you put \\n in the string, otherwise, it's on the same line.

Answer 4

Of course you could just follow How to print without newline or space?

but in that case, it would be better to insert your expression as the last argument in a ternary expression :

      , each['ReservedInstancesOfferingId'], ','
      , each['FixedPrice'], ','
      , "0.0" if not each['RecurringCharges'] else each['RecurringCharges'][0].get('Amount')
      )