Extracting parameters from a Python F-string
I have a python f-string as follows:
def send_string():
ticket_id=123
message = f'{ticket_id} Jira created successfully'
return message
def extract_ticket_from_message(message):
#pseudo code
# Is it possible to extract the ticket id without parsing the
# whole string and using regex
Is there a convenient way of extracting the ticket_id value from the f-string without having to parse the whole string using regex in Python 3.6?
python string python-3.x f-string
asked Nov 15 '18 at 18:15
AmistadAmistad
2,74472639
|
show 3 more comments
I have a python f-string as follows:
def send_string():
ticket_id=123
message = f'{ticket_id} Jira created successfully'
return message
def extract_ticket_from_message(message):
#pseudo code
# Is it possible to extract the ticket id without parsing the
# whole string and using regex
Is there a convenient way of extracting the ticket_id value from the f-string without having to parse the whole string using regex in Python 3.6?
python string python-3.x f-string
asked Nov 15 '18 at 18:15
AmistadAmistad
2,74472639
2
Well, the variableticket_idshould hold it. I'm guessing that's not what you're looking for... can you expand a bit? Maybe with a little more example code?
– glibdud
Nov 15 '18 at 18:23
is "ticket_id" literally the expected output in your example, or are you expecting a ticket id like "1234"? Does the solution need to be generalized? Do we have any garauntees about what ticket_id is going to be: i.e.- do we know it won't contain spaces and you can simply usemessage.split(maxsplit=1)[0]?
– Reid Ballard
Nov 15 '18 at 18:23
Why not simplyyourDesiredResult = str(ticket_id)? Is this an XY problem?
– usr2564301
Nov 15 '18 at 18:26
@usr2564301, Why notyourDesiredResult = ticket_id?
– Austin
Nov 15 '18 at 18:28
@Austin: in the formatted f-string it will be a string. It looks like OP is thinking about alternatives to getting its value as a string. We will have to await clarification, though.
– usr2564301
Nov 15 '18 at 18:30
|
show 3 more comments
I have a python f-string as follows:
def send_string():
ticket_id=123
message = f'{ticket_id} Jira created successfully'
return message
def extract_ticket_from_message(message):
#pseudo code
# Is it possible to extract the ticket id without parsing the
# whole string and using regex
Is there a convenient way of extracting the ticket_id value from the f-string without having to parse the whole string using regex in Python 3.6?
python string python-3.x f-string
asked Nov 15 '18 at 18:15
AmistadAmistad
2,74472639
I have a python f-string as follows:
def send_string():
ticket_id=123
message = f'{ticket_id} Jira created successfully'
return message
def extract_ticket_from_message(message):
#pseudo code
# Is it possible to extract the ticket id without parsing the
# whole string and using regex
Is there a convenient way of extracting the ticket_id value from the f-string without having to parse the whole string using regex in Python 3.6?
python string python-3.x f-string
python string python-3.x f-string
asked Nov 15 '18 at 18:15
AmistadAmistad
2,74472639
asked Nov 15 '18 at 18:15
AmistadAmistad
2,74472639
edited Nov 15 '18 at 18:35
Amistad
asked Nov 15 '18 at 18:15
AmistadAmistad
2,74472639
asked Nov 15 '18 at 18:15
AmistadAmistad
2,74472639
asked Nov 15 '18 at 18:15
AmistadAmistad
2,74472639
2,74472639
2
Well, the variableticket_idshould hold it. I'm guessing that's not what you're looking for... can you expand a bit? Maybe with a little more example code?
– glibdud
Nov 15 '18 at 18:23
is "ticket_id" literally the expected output in your example, or are you expecting a ticket id like "1234"? Does the solution need to be generalized? Do we have any garauntees about what ticket_id is going to be: i.e.- do we know it won't contain spaces and you can simply usemessage.split(maxsplit=1)[0]?
– Reid Ballard
Nov 15 '18 at 18:23
Why not simplyyourDesiredResult = str(ticket_id)? Is this an XY problem?
– usr2564301
Nov 15 '18 at 18:26
@usr2564301, Why notyourDesiredResult = ticket_id?
– Austin
Nov 15 '18 at 18:28
@Austin: in the formatted f-string it will be a string. It looks like OP is thinking about alternatives to getting its value as a string. We will have to await clarification, though.
– usr2564301
Nov 15 '18 at 18:30
|
show 3 more comments
2
Well, the variableticket_idshould hold it. I'm guessing that's not what you're looking for... can you expand a bit? Maybe with a little more example code?
– glibdud
Nov 15 '18 at 18:23
is "ticket_id" literally the expected output in your example, or are you expecting a ticket id like "1234"? Does the solution need to be generalized? Do we have any garauntees about what ticket_id is going to be: i.e.- do we know it won't contain spaces and you can simply usemessage.split(maxsplit=1)[0]?
– Reid Ballard
Nov 15 '18 at 18:23
Why not simplyyourDesiredResult = str(ticket_id)? Is this an XY problem?
– usr2564301
Nov 15 '18 at 18:26
@usr2564301, Why notyourDesiredResult = ticket_id?
– Austin
Nov 15 '18 at 18:28
@Austin: in the formatted f-string it will be a string. It looks like OP is thinking about alternatives to getting its value as a string. We will have to await clarification, though.
– usr2564301
Nov 15 '18 at 18:30
2
2
Well, the variable
ticket_id should hold it. I'm guessing that's not what you're looking for... can you expand a bit? Maybe with a little more example code?– glibdud
Nov 15 '18 at 18:23
Well, the variable
ticket_id should hold it. I'm guessing that's not what you're looking for... can you expand a bit? Maybe with a little more example code?– glibdud
Nov 15 '18 at 18:23
is "ticket_id" literally the expected output in your example, or are you expecting a ticket id like "1234"? Does the solution need to be generalized? Do we have any garauntees about what ticket_id is going to be: i.e.- do we know it won't contain spaces and you can simply use
message.split(maxsplit=1)[0]?– Reid Ballard
Nov 15 '18 at 18:23
is "ticket_id" literally the expected output in your example, or are you expecting a ticket id like "1234"? Does the solution need to be generalized? Do we have any garauntees about what ticket_id is going to be: i.e.- do we know it won't contain spaces and you can simply use
message.split(maxsplit=1)[0]?– Reid Ballard
Nov 15 '18 at 18:23
Why not simply
yourDesiredResult = str(ticket_id)? Is this an XY problem?– usr2564301
Nov 15 '18 at 18:26
Why not simply
yourDesiredResult = str(ticket_id)? Is this an XY problem?– usr2564301
Nov 15 '18 at 18:26
@usr2564301, Why not
yourDesiredResult = ticket_id?– Austin
Nov 15 '18 at 18:28
@usr2564301, Why not
yourDesiredResult = ticket_id?– Austin
Nov 15 '18 at 18:28
@Austin: in the formatted f-string it will be a string. It looks like OP is thinking about alternatives to getting its value as a string. We will have to await clarification, though.
– usr2564301
Nov 15 '18 at 18:30
@Austin: in the formatted f-string it will be a string. It looks like OP is thinking about alternatives to getting its value as a string. We will have to await clarification, though.
– usr2564301
Nov 15 '18 at 18:30
|
show 3 more comments
1 Answer
1
active
oldest
votes
If
ticket_id = 1234
message = f'{ticket_id} Jira created successfully'
then – without using a regex –
def extract_ticket_from_message(message):
return message.split()[0]
In other words, the first word. If ticket_id can be any string as well (so possibly containing spaces), you can still use this but cut off the final 3 words instead. (After all, you know what will follow.) If ticket_id is a more complex object that results in a string representation, there is no practical way to resolve it back to the original class/object/anything else than a Python primitive.
Noteworthy: you cannot get the original type without ambiguity. If the original was a string but its value was "1234", then you cannot know for sure if a string or number was passed.
answered Nov 15 '18 at 18:34
usr2564301usr2564301
17.9k73372
add a comment |
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1 Answer
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votes
If
ticket_id = 1234
message = f'{ticket_id} Jira created successfully'
then – without using a regex –
def extract_ticket_from_message(message):
return message.split()[0]
In other words, the first word. If ticket_id can be any string as well (so possibly containing spaces), you can still use this but cut off the final 3 words instead. (After all, you know what will follow.) If ticket_id is a more complex object that results in a string representation, there is no practical way to resolve it back to the original class/object/anything else than a Python primitive.
Noteworthy: you cannot get the original type without ambiguity. If the original was a string but its value was "1234", then you cannot know for sure if a string or number was passed.
answered Nov 15 '18 at 18:34
usr2564301usr2564301
17.9k73372
add a comment |
If
ticket_id = 1234
message = f'{ticket_id} Jira created successfully'
then – without using a regex –
def extract_ticket_from_message(message):
return message.split()[0]
In other words, the first word. If ticket_id can be any string as well (so possibly containing spaces), you can still use this but cut off the final 3 words instead. (After all, you know what will follow.) If ticket_id is a more complex object that results in a string representation, there is no practical way to resolve it back to the original class/object/anything else than a Python primitive.
Noteworthy: you cannot get the original type without ambiguity. If the original was a string but its value was "1234", then you cannot know for sure if a string or number was passed.
answered Nov 15 '18 at 18:34
usr2564301usr2564301
17.9k73372
add a comment |
If
ticket_id = 1234
message = f'{ticket_id} Jira created successfully'
then – without using a regex –
def extract_ticket_from_message(message):
return message.split()[0]
In other words, the first word. If ticket_id can be any string as well (so possibly containing spaces), you can still use this but cut off the final 3 words instead. (After all, you know what will follow.) If ticket_id is a more complex object that results in a string representation, there is no practical way to resolve it back to the original class/object/anything else than a Python primitive.
Noteworthy: you cannot get the original type without ambiguity. If the original was a string but its value was "1234", then you cannot know for sure if a string or number was passed.
answered Nov 15 '18 at 18:34
usr2564301usr2564301
17.9k73372
If
ticket_id = 1234
message = f'{ticket_id} Jira created successfully'
then – without using a regex –
def extract_ticket_from_message(message):
return message.split()[0]
In other words, the first word. If ticket_id can be any string as well (so possibly containing spaces), you can still use this but cut off the final 3 words instead. (After all, you know what will follow.) If ticket_id is a more complex object that results in a string representation, there is no practical way to resolve it back to the original class/object/anything else than a Python primitive.
Noteworthy: you cannot get the original type without ambiguity. If the original was a string but its value was "1234", then you cannot know for sure if a string or number was passed.
answered Nov 15 '18 at 18:34
usr2564301usr2564301
17.9k73372
edited Nov 16 '18 at 10:28
answered Nov 15 '18 at 18:34
usr2564301usr2564301
17.9k73372
answered Nov 15 '18 at 18:34
usr2564301usr2564301
17.9k73372
answered Nov 15 '18 at 18:34
usr2564301usr2564301
17.9k73372
17.9k73372
add a comment |
add a comment |
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2
Well, the variable
ticket_idshould hold it. I'm guessing that's not what you're looking for... can you expand a bit? Maybe with a little more example code?– glibdud
Nov 15 '18 at 18:23
is "ticket_id" literally the expected output in your example, or are you expecting a ticket id like "1234"? Does the solution need to be generalized? Do we have any garauntees about what ticket_id is going to be: i.e.- do we know it won't contain spaces and you can simply use
message.split(maxsplit=1)[0]?– Reid Ballard
Nov 15 '18 at 18:23
Why not simply
yourDesiredResult = str(ticket_id)? Is this an XY problem?– usr2564301
Nov 15 '18 at 18:26
@usr2564301, Why not
yourDesiredResult = ticket_id?– Austin
Nov 15 '18 at 18:28
@Austin: in the formatted f-string it will be a string. It looks like OP is thinking about alternatives to getting its value as a string. We will have to await clarification, though.
– usr2564301
Nov 15 '18 at 18:30