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Print directly from itertools function?


By : Kathy Arv
Date : August 01 2020, 10:00 PM


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What is the difference print a object directly and print a object after call str function in python


By : user2336407
Date : March 29 2020, 07:55 AM
it fixes the issue First I create a unicode object like; ,
Print call str function, doesn't it?
code :
print test.encode('utf-8')

Print function that consumes json.RawMessage directly


By : Hyun Park
Date : March 29 2020, 07:55 AM

Why can't we directly print the output of a lambda function/expression directly as a string,list, or tuple?


By : Amar Chandra
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Your problem has nothing to do with lambda, if you used a function you would run into the same problem - map returns an object, which is an iterable, ie. it can be converted to a list of values, but it is not a list of values. To print such a list, you must explicitly require its creation:
code :
print(list(map(lambda x: (float(9)/5)*x + 32, Cel)))

How can i make a website connect directly to a printer? so that it can print out the orders directly


By : Daniel
Date : March 29 2020, 07:55 AM
seems to work fine Pre-requisite is that you have a way to let the webserver talk to the printer. This is the case if the printer is attached to the webserver, the printer is on the same network as the webserver or the webserver has a VPN link to the printer's network. If any of that is the case, then you can collect the data from the shopping cart on submit and print out the order form using for example IPP as AJ pointed out. There is no need to use periodic prints. Printers have their own spools and you may as well print the order at the time that it is valid.
If you do not have a way to communicate with the printer, then it's a whole new ballgame. I would send an email (using PHP's mail() function or any of the mailer packages out there) to a special email address which calls a program that strips the email headers and does any needed formatting. In that case, the printer needs to be on the same network as the email server. To answer this properly, we'd need more info about the mailserver environment.

How to print all possible combinations in string using itertools?


By : taiba
Date : August 11 2020, 01:00 AM
Hope that helps First, you would like to find all the combinations of (can/cannot) and (13/15).
To do this you can use:
code :
import itertools
can_or_cannot = ['can', 'cannot']
age = [13, 15]
list(itertools.product(can_or_cannot, age))

Out[13]: [('can', 13), ('can', 15), ('cannot', 13), ('cannot', 15)]
C = [f"I {can_or_cannot} fly I am {age} years old" for (can_or_cannot, age) in list(itertools.product(can_or_cannot, age))]


Out[15]: 
['I can fly I am 13 years old',
 'I can fly I am 15 years old',
 'I cannot fly I am 13 years old',
 'I cannot fly I am 15 years old']
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