What is wrong with the python code below? How do I fix it$?$def simulate$\_$escape$\_$with$\_$trajectory$($M$)$:

box$\_$length $=50$

step $=2$

escapes $=0$

last$\_$trajectory $=[]$

for i in range$($M$)$:

x$\_$corr, y$\_$corr $=$ box$\_$length $//2,$ box$\_$length $//2$

trajectory $=[($x$\_$corr, y$\_$corr$)]$ #Store initial position

for t in range$(600)$:

u $=$ np$.$random.uniform$($low $=0,$ high $=1)$

if u $<0\mathrm{.}25$:

x$\_$corr $-=$ step

elif u $<0\mathrm{.}5$:

x$\_$corr $+=$ step

elif u $<0\mathrm{.}75$:

y$\_$corr $+=$ step

else:

y$\_$corr $-=$ step

x$\_$corr $=$ max$(0,$ min$($box$\_$length, x$\_$corr$))$

y$\_$corr $=$ max$(0,$ min$($box$\_$length, y$\_$corr$))$

trajectory.append$(($x$\_$corr, y$\_$corr$))$ #Store current position

if y$\_$corr $>=$ box$\_$length and $20<=$ x$\_$corr $<=30$:

escapes $+=1$

#print$("$escaped$!",$ i$)$

last$\_$trajectory $=$ trajectory #Update last trajectory

break

probability $=$ escapes $/$ M

return escapes, probability, last$\_$trajectory

attempts $=$ np$.$linspace$(10,1000,19)$

data $=\{"$attempts$"$: $[],$ "escapes": $[],$ "probability": $[]\}$

for M in attempts:

escapes, probability, last$\_$trajectory $=$ simulate$\_$escape$\_$with$\_$trajectory$($M$)$

data$["$attempts$"].$append$($M$)$

data$["$escapes$"].$append$($escapes$)$

data$["$probability$"].$append$($probability$)$