This question already has answers here:
Removing u in list
(8 answers)
Closed 3 years ago.
I have a list of id's and I am trying the following below:
final = "ids: {}".format(tuple(id_list))
For some reason I am getting the following:
"ids: (u'213231231', u'weqewqqwe')
Could anyone help out on why the u is coming inside my final string. When I am trying the same in another environment, I get the output without the u''. Any specific reason for this?
Actually it is unicode strings in python
for literal value of string you can fist map with str
>>> final = "ids: {}".format(tuple(map(str, id_list)))
>>> final
"ids: ('213231231', 'weqewqqwe')
Related
This question already has answers here:
How can I split and parse a string in Python? [duplicate]
(3 answers)
Closed 1 year ago.
I am trying to make python take a string, separate the characters before another character eg: "10001001010Q1002000293Q100292Q". I want to separate the string before each Q and have python create either a list or another string. I cannot figure this out for the life of me.
You can do this using the split function, give "Q" as a parameter to the split function then you can slice the list to only get the numbers before Q.
num = "10001001010Q1002000293Q100292Q"
print(num.split("Q")[:-1])
Split() function: https://www.w3schools.com/python/ref_string_split.asp
Slicing: https://www.w3schools.com/python/python_strings_slicing.asp
The syntax is str.split("separator").
str = str.split("Q")
Then output will be ['10001001010', '1002000293', '100292', ''].
If you don't need the last empty element then you can write as:
str = str.split("Q")[:-1]
This question already has answers here:
Convert a list of characters into a string [duplicate]
(9 answers)
Closed 4 years ago.
I have written a code that ends up outputting what I want but in list format. Just to make it easier to understand, I will make up an input.
If I get
>>>
['H','e','l','l','o',' ','W','o','r','l','d']
as an output, how can I change it to:
>>>
'Hello World'
I have tried using .join() but it tells me that it does not work with lists as an error code.
If you need any more information, or I am being vague, just leave a comment saying so and I will update the question.
And if you leave a downvote, can you at least tell me why so that I can fix it or know what to improve for later posts
You join on the connector like this: ''.join(['H','e','l','l','o',' ','W','o','r','l','d'])
Just use join method by passing a list as parameter.
str = ''.join(['H','e','l','l','o',' ','W','o','r','l','d'])
This question already has answers here:
why is python string split() not splitting
(3 answers)
Closed 6 years ago.
I'm trying to split
<team>
into just team, here is the code I'm using:
s = "<team>"
s.split(">")[1]
s
'<team>'
s.split(">")[1].split("<")[0]
s
'<team>
As you can see, it's still leaving me with
<team>
anyone know why>
str.split() function returns a list, it does not split the string in place.
You'll need to make a new variable:
s = "<team>"
t = s.split(">")[1]
t
This question already has answers here:
Converting a list to a string [duplicate]
(8 answers)
Closed 6 years ago.
If I were to get the input of someone and put it into a list. How would I combine this into one big string.
user_input = input()
listed = list(user_input)
I am having trouble with this since the contents are unknown. Is there anyway to make it one big string again(combining all the contents of the list). Is there anything I can import into my code to do this for me
To join a list together, you can use the join method. Simply use it as a method on whatever string you want to have placed between each entry in the list:
>>> ls = ['Hello,','world!']
>>> ' '.join(ls)
'Hello, world!'
This question already has answers here:
Converting a string to a tuple in python
(3 answers)
Closed 8 years ago.
I downloaded a csv table from a database using SQL. One of the fields has values like so:
'[0.1234,0.0,0.0]'
I want to convert this string to a python list to get the first value. I only know how to convert strings to ints and floats... is there any way to de-string this object? The table I got from SQL is from a web-based viewer, I'm not getting it from my command line.
You could take the substring from index 1 to index -1 and then split it using the comma as a delimiter. In python
array = variable[1:-1].split(',')
should work.
If you're sure it is always valid list syntax, you could use"
myList = eval('[0.1234,0.0,0.0]')
Or if the value itself has quotes ' in it, you can slice those off
value = "'[0.1234,0.0,0.0]'"
myList = eval(value[1:-1])
Then to get the first value you just
myList[0]