Replace value of variable directly inside f-string Question: I’m trying to replace a value inside a variable that I use within an f-string. In this case it is a single quote. For example: var1 = "foo" var2 = "bar ‘" print(f"{var1}-{var2}") Now, I want to get rid of the single quote within var2, but do …
Is there a way to unpack a dictionary into an f-string **template**? Question: With .format we can unpack a dictionary into a string template. That’s the only thing I haven’t found how to do with f-strings. Is there a way to do it? E.g. how to do this with f-strings? template = "my values: {number} …
Python f-strings: how to escape curly brackets with numbers in it Question: If you have to escape curly brackets in f-strings you can double them, so {{hello}} results in {hello}. The problem is, that the algorithm just concatenates the string and afterwards interprets this part as every other part. So if there is any structure …
How to create new column in function using f-string in Pandas Python? Question: I have line of my code in Python Pandas like below, but it is not correct I assume: def xxx(df, dates, date1): for col in dates: df[f"{col} + _name"] = (df["{date1}"] – df["{col}"]).dt.days I try to run a loop by all "col" …
Python variable file path and string prefixes Question: Using tkinter to select output folder for processed files. root = tk.Tk() root.withdraw() file_output = filedialog.askdirectory() x = "NAME" file_output >>>’C:/Users/person/Documents/’ Would like to use file_output and x as variables for my file path, My attempt: df.to_csv(f"{file_output}/{x} 6-30-22 11s & 12s.csv") print((f"{file_output}/{x} 6-30-22 11s & 12s.csv")) >>> …
Python fancy strings Question: How can I use Python’s fancy strings in this case? Example: I have a list of f-string in a consts.py file: commands = [f"{prefix}…", f"{prefix}…", …] main.py: import consts consts.commands[0] = … Can I somehow set "prefix" in commands from main, or do I need to define "prefix" first in consts …
f-string script conversion to earlier version of Python Question: I have a question in regards to comparing files using python. For context, the problem I am having is that I have two firewalls with different configurations (over 14000 lines each on Notepad++) and I need to find the differences and annotate them. Quick Example – …
Why are f-strings slower than string concatenation when repeatedly adding to a string inside a loop? Question: I was benchmarking some code for a project with timeit (using a free replit, so 1024MB of memory): code = ‘{"type":"body","layers":[‘ for x, row in enumerate(pixels): for y, pixel in enumerate(row): if pixel != (0, 0, 0, 0): …
How can I debug this Python syntax error with f string Question: def write_users_group(heading_writer, heading, user_writer, users): heading_writer.writerow([f"{heading}", f"{len(users)} users"]) user_writer.writeheader() for user in users: user_writer.writerow(user) heading_writer.writerow([" "]) Error: File "/Users/ashirwadniv/Downloads/gitlab/users.py", line 59 heading_writer.writerow([f"{heading}", f"{len(users)} users"]) ^ SyntaxError: invalid syntax Asked By: Ashirwad.nivalkar || Source Answers: This syntax is only allowed for Python version 3.6 …
f-string representation different than str() Question: I had always thought that f-strings invoked the __str__ method. That is, f'{x}’ was always the same as str(x). However, with this class class Thing(enum.IntEnum): A = 0 f'{Thing.A}’ is ‘0’ while str(Thing.A) is ‘Thing.A’. This example doesn’t work if I use enum.Enum as the base class. What functionality …
