Best method for Building Strings in Python

Your question is about Python 2.7, but it is worth note that from Python 3.6 onward we can use f-strings:

place = 'world'
f'hallo {place}'

'hallo world'

This f prefix, called a formatted string literal or f-string, is described in the documentation on lexical analysis

You have two options here:

• Use the string .join() method: " ".join(["This", "is", "a", "test"])
• Use the percent operator to replace parts of a string: "%s, %s!" % ("Hello", "world")

Normally you would be looking for str.join. It takes an argument of an iterable containing what you want to chain together and applies it to a separator:

>>> ' '.join((EmployeeName, str(EmployeeNumber), UserType, SalaryType))
'Bob 100 Employee Hourly'

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However, seeing as you know exactly what parts the string will be composed of, and not all of the parts are native strings, you are probably better of using format:

>>> '{0} {1} {2} {3}'.format(EmployeeName, str(EmployeeNumber), UserType, SalaryType)
'Bob 100 Employee Hourly'