[Tutor] Variable and a raw string

[Mats Wichmann]

On 1/20/20 1:21 PM, Joel Goldstick wrote:
> On Mon, Jan 20, 2020 at 3:15 PM Alessandro Caudilho <caudilho at cock.li> wrote:
>>
>> Hello all
>>
>> my code below:
>>
>> ============================
>> from datetime import datetime
>>
>> state = 'colorado/us'
>>
> the following line is causing your problem.  'state' is 'colorado/us
> so you are trying to open
> /home/user/colorado/us.txt
> 
> You could change the / to _ and it should work
>> with open('/home/user/' + state + '.txt', 'a') as f:
>>      time = datetime.today().strftime('%Y-%m-%d %H:%M:%S')
>>      f.write(time)
>>      f.close()
>> ============================
>>
>> And I get FileNotFoundError: [Errno 2] No such file or directory: "/home/user/colorado/us'.txt"
>>
>> So how can I create a variable and assign the raw string to it? Are there other solutions for this problem?

In particular, it's causing a problem because you're asking to create a 
file in a directory /home/user/colorado that doesn't exist.  If you 
follow Joel's suggestion and change state to 'colorado_us', then you're 
trying to create the file 'colorado_us.text' in /home/user, which will 
work (as long as /home/user exists).

You can also add logic to create necessary directories if you want to 
organize your data by directories...