How to use Python .format() appropriately?

Question

Given the following:

user_ = socket.gethostname()
runtime_ = time.ctime()
game_days = 'season open'
variable = 'speed'
start_time = datetime.time(15, 0)
weekdays = 'all days'
period = ['1/1/2013', '1/1/2020']

How can I use .format() see this. In order to get this output

print(tag)

User-WS, Mon Mar 27 07:30:08 2017  US/Central - season open
Variable: speed At: 15:00. all days 1/1/2013:1/1/2020
--------------------------------------------------------

Right now I'm doing:

tag = user_ + ', ' + runtime_ + '  US/Central - ' + game_days + '\n' + 'Variable: '  + \ 
variable + ' At: ' + str(start_time)[:-3] + '. ' + weekdays + ' ' + period[0] + ':' + period[1] + '\n' + \
'--------------------------------------------------------'

What have you tried? In general you can go from concatenation to formatting just by replacing the current ' + name + ' with a placeholder, so you have a single string, then passing all the names to .format. Did that not work? — jonrsharpe
– jonrsharpe, Commented Mar 27, 2017 at 12:39

Stael · Accepted Answer · 2017-03-27 12:43:13Z

2

s = '{}, {}, US/Central - {}\nVariable: {}, At: {}. {} {}:{}\n--------------------------------------------------------'

tag = s.format(user_, runtime_ game_days, variable, str(start_time)[:-3], weekdays, period[0],period[1])

That is a remarkably thorough tutorial you linked, I didn't know some of that. What was it specifically you were struggling with?

answered Mar 27, 2017 at 12:43

Stael

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