The input parameter to L$0604$b$($inString$)$ is expected to be a white$-$space delimited list of string representations of decimal ints. For example, $\text{'}765-24\text{'}$ is a valid inString.

If inString contains a substring that is not white space or a valid decimal int, L$0604$b$($inString$)==\text{'}$no$\text{'}.$ For example, L$0604$b$(\text{'}7-65-2$ x$0$F $8)$

$\text{'}==\text{'}$no$\text{'},$ because x$0$F is not a valid decimal int.

Otherwise, if inString does not contain a substring representing positive int, return $\text{'}$no$\text{'}.$ For example, L$0604$b$(\text{'}-2\text{'})==\text{'}$no$\text{'}.$

Otherwise, L$0130$b$($inString$)$ should return a string representing the sum of all positive ints in inString, mod $2.$ For example,L$0604$b$(\text{'}765-29\text{'})$ would return $\text{'}1\text{'},$ because $7+6+5+9=27,$ and $27\%2==1.($Note that $\%$ is the Python mod operator.$)$

Download L$0604$b$-$template.py Download L$0604$b$-$template.py$,$ and modify it to implement the required logic.

L$0604$b$-$template.py:

def L$0604$b$($inString$)$:

# inString is a white$-$space delimited list of string representations

# of decimal ints. For example, $\text{'}765-24\text{'}$ is a valid inString.

# If inString contains a white$-$space delimited substring of symbols that

# is not a valid decimal int, L$0604$b$($inString$)==\text{'}$no$\text{'}.$ For example,

# L$0604$b$(\text{'}7-65-2$ x$0$F $8)\text{'}==\text{'}$no$\text{'},$ because $\text{'}$x$0$F$\text{'}$ is not a valid

# decimal int.

# Otherwise, if inString does not contain any representations of positive

# ints, return $\text{'}$no$\text{'}$

# Otherwise, L$0604$b$($inString$)$ returns the sum of all positive ints mod $2.$

# For example,L$0604$b$(\text{'}765-25\text{'})$ would return $1,$ because

# $7+6+5+9=27,27\%2==1.($Note that $\%$ is the Python mod operator.

#

# Add the needed code.

#

return $\text{'}0\text{'}$ # returning a constant value will not work.

if $\_\_$name$\_\_==\text{'}\_\_$main$\_\_\text{'}$:

def test$\_$case$($F$,$string,expected,num,comment$=\text{'}\text{'})$:

err $=\text{'}**\text{'}$

result $=$ F$($string$)$

func$\_$name $=$ str$($F$).$split$()[1]$

func$\_$call $=$ f$\text{'}\text{'}\text{'}\{$func$\_$name$\}("\{$string$\}")\text{'}\text{'}\text{'}$

if result $==$ expected: err $=\text{'}\text{'}$

e $=$ expected

print $($f$\text{'}\{$err$\}$test #$\{$num$\}\{$func$\_$call$\}$: expected $"\{$e$\}",$ received

$"\{$result$\}"\text{'})$

print $($f$\text{'}$test #$\{$num$\}$ Explanation: $\{$comment$\}$

$\text{'})$

return num $+1$

F $=$ L$0604$b

num $=1$

s $=\text{'}1059-2\text{'}$

exp $=\text{'}10+5+9=24,24\%2=0\text{'}$

num $=$ test$\_$case$($F$,1,\text{'}0\text{'},$num,exp$)$

s $=\text{'}-2\text{'}$

exp $=\text{'}$No positive ints'

num $=$ test$\_$case$($F$,$s$,\text{'}$no$\text{'},$num,exp$)$

s $=\text{'}7-5162\text{'}$

exp $=\text{'}7+16+2=25,25\%2=1\text{'}$

num $=$ test$\_$case$($F$,$s$,\text{'}1\text{'},$num,exp$)$

s $=\text{'}$x$1611011-2\text{'}$

exp $="$x$1$ does not represent a decimal int"

num $=$ test$\_$case$($F$,$s$,\text{'}14\text{'},$num,exp$)$