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Questions tagged [positional-parameter]

104 questions
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Error: get_distance() missing 1 required positional argument: 'point'

Getting Error: get_distance() missing 1 required positional argument: 'point' when the function is already defined with one positional argument called point. Here is the class: from math import radians, sin, cos, acos, atan2, sqrt class…
Scott Bing
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With argparse it it possible to process arguments only up to the last non-positional argument?

I'm writing a tool which passes arguments to another command provided with the arguments like this: foo --arg1 -b -c bar -v --number=42 In this example foo is my tool and --arg1 -b -c should be the arguments parsed by foo, while -v --number=42 are…
frans
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issue with required parameter

Create a new function named defaults with two parameters: my_optional which has a default value of True my_required which is a required param and has no default value Return the following logical comparison: my_optional is my_required Expected…
stumpamo
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Use argument in bash command in first part of a pipe

I want to have a simple function or alias in my bashrc that lists files with ls using all my favorite options and pipes the output to more. Here is how it looks like l() { ls -lh --color $1 | more } However, when I call this function in a…
Dronakuul
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store_response() takes 1 positional argument but 2 were given

I relatively new to the world of Python, and over the past few months I have been going over the exercises in Python Crash Course. I am stuck on the building of a class that takes answers for an anonymous survey. One of the methods of the class is…
Angel Arce Q
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How to set positional parameters in parameter sets?

I wrote a function with four parameters. The first two parameters are mandatory for both sets : Payload and Algorithm. The last two parameters (Secret and FilePath) define the parameter set. The order of defined paramters…
Alex_P
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Define variables with positional parameters using for loop in Bash script

Is there a way to define a bunch of positional-parameter variables using loop in Bash? For example, below is what I want to achieve mid_1=$1 freq_1=$2 mid_2=$3 freq_2=$4 mid_3=$5 freq_3=$6 mid_4=$7 freq_4=$8 my code: q=4 q_len=$(( q*2+1…
Liu Yu
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Flutter '{1} positional argument(s) expected, but {0} found

I tried to make circleImage Widget and use it. but when it's used, it makes error that needs argument. What argument needs in that position? @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( …
Uranus_ly
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Set placeholder argument in psql

Using psql, it seems possible to set named arguments using \pset somevar 'hello'. However there appears to be no way to set a positional argument like $1. This makes it difficult to paste in SQL snippets that use positional arguments. In the sqlite3…
Matt Joiner
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Missing 1 required position argument: 'self'

I'm having an issue with this: I'm getting the error " bar() missing 1 required positional argument: 'self' " I've tried fiddling this classes (using them and not using them) and with the self variable but I've got nothing. The function bar()…
CoopGod
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chop string(arguments passed by user)

suppose the user passed 5 arguments($1 $2 $3 $4 $5), how do I cut off the first two arguments($1 $2) and I only want the last 3 arguments awk '{print $3,$4,$5} < $@' what if I don't know how many arguments passed but I do not want the first two…
Bob
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Why is my bash script not recognizing the variable in the date command?

If I execute this line within a function of my bash script, it runs successfully: function myFnc(){ ... variable1=$(date -d 2021-01-01 +%W) ... } But if I pass '2021' as input argument by running myBash.sh '2021' I get an error "date: date not…
Gpp094
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Positional parameter not readable inside the variable - bash script

I have a problem with the small script I am working on, can you please explain why is this not working: #!/bin/bash var1=$( linux command to list ldap users | grep "user: $1") echo $var1 So, when I deploy my script ( ./mycript.sh $michael ), it…
Belphegor
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I lose my array values when I use it as input for a positional parameter in bash script

I have written the following script: cat BaseReCall.sh #!/bin/bash #### Usage: < input > < ref > < (array of dbsnps) > input=$1 ref=$2 Pickle=$3 echo "${Pickle[@]}" ### Assign variables BaseReCall="gatk BaseRecalibrator \\ -I $input \\ -R…
Ctat41
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Assigning argument to a positional parameter

I am calling a shell script that has a large number of arguments e.g. ./train-rnn.sh 0 0 0 "63 512". Is it possible to assign each argument to a specific positional parameter ? e.g. ./train-rnn.sh $1=0 $2=0 $4=0 $3="63 512"
Kong
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