two if or more with one ELSE

I want to read the Settings.ini file when adding more values ​​with some empty values

config.ini
[settings]
videofile = video.avi
codesplit = -vn
outputfile = audio.mp3
codec = copy

Output

['ffmpeg.exe', '-i', 'video.avi', '-vn', 'copy', 'audio.mp3']

f you make the value "codesplit" and "codec" empty, the code will It works well. example : To convert a video avi file to video mp4

[settings]
videofile = video.avi
codesplit = 
outputfile = videoaudio.mp4
codec = 

Output

['ffmpeg.exe', '-i', 'video.avi', 'videoaudio.mp4']

If you want to make with one value empty "codesplit" or "copy" , the code does not work.

[settings]
videofile = video.avi
codesplit = 
outputfile = videoaudio.mp4
codec = copy

or

[settings]
videofile = video.avi
codesplit = -vn
outputfile = audio.mp3
codec = 

Output

['ffmpeg.exe', '-i', 'video.avi', 'videoaudio.mp4']

This is what I want

['ffmpeg.exe', '-i', 'video.avi', 'copy', 'videoaudio.mp4']

['ffmpeg.exe', '-i', 'video.avi', '-vn', 'audio.mp3']

full code

import subprocess
import configparser


config = configparser.ConfigParser(allow_no_value=True)
config.read(r"Settings.ini")
videofile = config.get("settings", "videofile")
outputfile = config.get("settings", "outputfile")
codesplit = config.get("settings", "codesplit", fallback=None)
codec = config.get("settings", "codec", fallback=None)

ffmpeg_path = r"ffmpeg.exe"

if codesplit and codec :
    command = [
        f"{ffmpeg_path}",
        "-i",
        (videofile),
        (codesplit),
        (codec),
        (outputfile),
    ]
else:
    command = [
        f"{ffmpeg_path}",
        "-i",
        (videofile),
        (outputfile),
    ]

process = subprocess.Popen(
    command,
    stdout=subprocess.PIPE,
    stderr=subprocess.PIPE,
    text=True,
    bufsize=1,
    universal_newlines=True,
)
process.communicate()

print(command)

Tried adding a statement "and"

if (codesplit) and (codec) :

Nothing happens

Rather than having a simple if else you should build the command piece by piece based on the optional values. Something like:

import subprocess
import configparser


config = configparser.ConfigParser(allow_no_value=True)
config.read(r"Settings.ini")
videofile = config.get("settings", "videofile")
outputfile = config.get("settings", "outputfile")
codesplit = config.get("settings", "codesplit", fallback=None)
codec = config.get("settings", "codec", fallback=None)

ffmpeg_path = r"ffmpeg.exe"
command = [ ffmpeg_path, "-i", videofile ]
if codesplit:
    command.append(codesplit)

if codec:
    command.append(codec)

command.append(outputfile)

# lines commented out for testing
#
# process = subprocess.Popen(
#     command,
#     stdout=subprocess.PIPE,
#     stderr=subprocess.PIPE,
#     text=True,
#     bufsize=1,
#     universal_newlines=True,
# )
# process.communicate()

print(command)

Using the above Python script I jget the following results from the four sample config.ini files:

C:\Users\test>python test.py
['ffmpeg.exe', '-i', 'video.avi', '-vn', 'copy', 'audio.mp3']

C:\Users\test>python test.py
['ffmpeg.exe', '-i', 'video.avi', 'videoaudio.mp4']

C:\Users\test>python test.py
['ffmpeg.exe', '-i', 'video.avi', 'copy', 'videoaudio.mp4']

C:\Users\test>python test.py
['ffmpeg.exe', '-i', 'video.avi', '-vn', 'audio.mp3']