Hello Everyone,
I am scanning a barcode from scanner and the data I receive is a string type, Now I see the data being populated but It has a space in front of data. So first character is space and then actual characters. “1Z096V4Y0657697557” Is there a way I can get rid of those extra characters? Interestingly I see boxes here but in actual tag it’s a space.
Thank you in advance.
I tried it but I think I might be doing it in a wrong manner as I don’t know python much. Let’s say I have
" Hello" in tag 9. What do I write? strip(tag9) or tag9.strip() ? and the result after strip will be stored in same tag9 ?
I’m assuming tag9 is a variable name. If that’s the case, then you can do this:
bar_str = tag9.strip()
Otherwise, you’ll first need to read in the tag value. One way you can do this is by using system.tag.readBlocking() or system.tag.readAsync().
I tried the same way. I think I know why it isn’t working. It shows me space in data value but when I copy that tag in notepad or here it looks like - “1Z096V4Y0657697557”.even this website is removing those characters. I am not sure if I can upload a picture here. As you see it’s not a space, It’s a character which is not readable by tag and it’s showing space.
Is there a command to delete first and last character from received string?
test = 'First Character'
print test[1:]
test = 'Last Character'
print test[:-1]
output
>>>
irst Character
Last Characte
>>>
Wow. This was big help, I tried and it works.
tag1 = system.tag.read("[default]Barcode Scanner/Barcode Scanner Data")
tag2 = tag1.value
print tag2
tag3 = tag2[1:-1]
print tag3
Somewhat safer would be to print repr(tag1) (to see the explicit character code(s) used as the prefix and suffix) and then pass them to strip, as in tag2.strip("\x01")
@urvishmehta92 you can upload by clicking the upload button…
For code and formatted text attach by using preformatted text…
OMG! I don’t know how I missed it. 
Thank you for pointing that out.