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Question about Fibonacci sequence generator - nothing prints
I was given an assigmnent in my class where I need to write an algorithm that can generate "n" numbers of the Fibonacci sequence.
I feel like this code should work, but am still having troubles locating what bug is preventing it from working.
The algorithm should start printing the Fibonacci sequence starting at the number 2 (the first 3 numbers are patched in), but it only prints the first 3 numbers and my algorithm doesn't print anything.
I even have sophisticated error checking that should rule out bad values, but it isn't reporting anything either.
#/usr/bin/python
import re
import math
import time
import sys
def errchk(hwmny,int1,int2,int3,int4,errcnt):
#Sanity check; first 12 numbers don't have 6's
expression = re.compile(r"^[^6]{1,3}", re.I | re.S) #expression for no sixes
if expression.match(str(int3)): # if it doesn't match
return # return
else: #otherwise
if (hwmny > 12): # as long as it's less than 12
return # no errors
zints.err() #but ifnot, errors
return None
def nofloats():
return math.floor(zints.int3)
class zeroints:
int3=int4 = 0 #int3 and int4 are 0
errcnt = 0 #count the number of errors
def err(self):
print "Errors"
return
hwmny =15 #hwmny variable is 10
int1 =int2 =1 #int1 and int2 are 1
zints = zeroints() #ints init'd to 0
print "0n1n1"
def loop(hwmny,int1,int2,int3,int4,errcnt):
while(((zints.int4<hwmny)or not(zints.int4>0))and not(zints.int4==0)): #while int4 is less than hwmny and error checking
zints.int3 =int1+ int2 #int3 is int1 plus int2
int1 =int2 #int1 is int2
string = 'The Values Are' #string is set to 'The Values Are'
int2= zints.int3 #int2 is int3
errchk(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
print zints.int3 #print int3
zints.int4= zints.int4+1 #int4 is int4 plus 1
loop(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
continue
loop(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
python fibonacci
edited Nov 21 '18 at 23:50
martineau
67.9k1090183
asked Nov 21 '18 at 23:42
XlogicXXlogicX
399210
add a comment |
I was given an assigmnent in my class where I need to write an algorithm that can generate "n" numbers of the Fibonacci sequence.
I feel like this code should work, but am still having troubles locating what bug is preventing it from working.
The algorithm should start printing the Fibonacci sequence starting at the number 2 (the first 3 numbers are patched in), but it only prints the first 3 numbers and my algorithm doesn't print anything.
I even have sophisticated error checking that should rule out bad values, but it isn't reporting anything either.
#/usr/bin/python
import re
import math
import time
import sys
def errchk(hwmny,int1,int2,int3,int4,errcnt):
#Sanity check; first 12 numbers don't have 6's
expression = re.compile(r"^[^6]{1,3}", re.I | re.S) #expression for no sixes
if expression.match(str(int3)): # if it doesn't match
return # return
else: #otherwise
if (hwmny > 12): # as long as it's less than 12
return # no errors
zints.err() #but ifnot, errors
return None
def nofloats():
return math.floor(zints.int3)
class zeroints:
int3=int4 = 0 #int3 and int4 are 0
errcnt = 0 #count the number of errors
def err(self):
print "Errors"
return
hwmny =15 #hwmny variable is 10
int1 =int2 =1 #int1 and int2 are 1
zints = zeroints() #ints init'd to 0
print "0n1n1"
def loop(hwmny,int1,int2,int3,int4,errcnt):
while(((zints.int4<hwmny)or not(zints.int4>0))and not(zints.int4==0)): #while int4 is less than hwmny and error checking
zints.int3 =int1+ int2 #int3 is int1 plus int2
int1 =int2 #int1 is int2
string = 'The Values Are' #string is set to 'The Values Are'
int2= zints.int3 #int2 is int3
errchk(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
print zints.int3 #print int3
zints.int4= zints.int4+1 #int4 is int4 plus 1
loop(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
continue
loop(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
python fibonacci
edited Nov 21 '18 at 23:50
martineau
67.9k1090183
asked Nov 21 '18 at 23:42
XlogicXXlogicX
399210
add a comment |
I was given an assigmnent in my class where I need to write an algorithm that can generate "n" numbers of the Fibonacci sequence.
I feel like this code should work, but am still having troubles locating what bug is preventing it from working.
The algorithm should start printing the Fibonacci sequence starting at the number 2 (the first 3 numbers are patched in), but it only prints the first 3 numbers and my algorithm doesn't print anything.
I even have sophisticated error checking that should rule out bad values, but it isn't reporting anything either.
#/usr/bin/python
import re
import math
import time
import sys
def errchk(hwmny,int1,int2,int3,int4,errcnt):
#Sanity check; first 12 numbers don't have 6's
expression = re.compile(r"^[^6]{1,3}", re.I | re.S) #expression for no sixes
if expression.match(str(int3)): # if it doesn't match
return # return
else: #otherwise
if (hwmny > 12): # as long as it's less than 12
return # no errors
zints.err() #but ifnot, errors
return None
def nofloats():
return math.floor(zints.int3)
class zeroints:
int3=int4 = 0 #int3 and int4 are 0
errcnt = 0 #count the number of errors
def err(self):
print "Errors"
return
hwmny =15 #hwmny variable is 10
int1 =int2 =1 #int1 and int2 are 1
zints = zeroints() #ints init'd to 0
print "0n1n1"
def loop(hwmny,int1,int2,int3,int4,errcnt):
while(((zints.int4<hwmny)or not(zints.int4>0))and not(zints.int4==0)): #while int4 is less than hwmny and error checking
zints.int3 =int1+ int2 #int3 is int1 plus int2
int1 =int2 #int1 is int2
string = 'The Values Are' #string is set to 'The Values Are'
int2= zints.int3 #int2 is int3
errchk(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
print zints.int3 #print int3
zints.int4= zints.int4+1 #int4 is int4 plus 1
loop(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
continue
loop(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
python fibonacci
edited Nov 21 '18 at 23:50
martineau
67.9k1090183
asked Nov 21 '18 at 23:42
XlogicXXlogicX
399210
I was given an assigmnent in my class where I need to write an algorithm that can generate "n" numbers of the Fibonacci sequence.
I feel like this code should work, but am still having troubles locating what bug is preventing it from working.
The algorithm should start printing the Fibonacci sequence starting at the number 2 (the first 3 numbers are patched in), but it only prints the first 3 numbers and my algorithm doesn't print anything.
I even have sophisticated error checking that should rule out bad values, but it isn't reporting anything either.
#/usr/bin/python
import re
import math
import time
import sys
def errchk(hwmny,int1,int2,int3,int4,errcnt):
#Sanity check; first 12 numbers don't have 6's
expression = re.compile(r"^[^6]{1,3}", re.I | re.S) #expression for no sixes
if expression.match(str(int3)): # if it doesn't match
return # return
else: #otherwise
if (hwmny > 12): # as long as it's less than 12
return # no errors
zints.err() #but ifnot, errors
return None
def nofloats():
return math.floor(zints.int3)
class zeroints:
int3=int4 = 0 #int3 and int4 are 0
errcnt = 0 #count the number of errors
def err(self):
print "Errors"
return
hwmny =15 #hwmny variable is 10
int1 =int2 =1 #int1 and int2 are 1
zints = zeroints() #ints init'd to 0
print "0n1n1"
def loop(hwmny,int1,int2,int3,int4,errcnt):
while(((zints.int4<hwmny)or not(zints.int4>0))and not(zints.int4==0)): #while int4 is less than hwmny and error checking
zints.int3 =int1+ int2 #int3 is int1 plus int2
int1 =int2 #int1 is int2
string = 'The Values Are' #string is set to 'The Values Are'
int2= zints.int3 #int2 is int3
errchk(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
print zints.int3 #print int3
zints.int4= zints.int4+1 #int4 is int4 plus 1
loop(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
continue
loop(hwmny,int1,int2,zints.int3,zints.int4,zints.errcnt)
python fibonacci
python fibonacci
edited Nov 21 '18 at 23:50
martineau
67.9k1090183
asked Nov 21 '18 at 23:42
XlogicXXlogicX
399210
edited Nov 21 '18 at 23:50
martineau
67.9k1090183
asked Nov 21 '18 at 23:42
XlogicXXlogicX
399210
edited Nov 21 '18 at 23:50
martineau
67.9k1090183
edited Nov 21 '18 at 23:50
martineau
67.9k1090183
edited Nov 21 '18 at 23:50
martineau
67.9k1090183
67.9k1090183
asked Nov 21 '18 at 23:42
XlogicXXlogicX
399210
asked Nov 21 '18 at 23:42
XlogicXXlogicX
399210
asked Nov 21 '18 at 23:42
XlogicXXlogicX
399210
399210
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
This fix looks simple.
The grouping in the while loop is wrong, change it to the following and it should work fine:
while((zints.int4<hwmny)or not(zints.int4>0)and not(zints.int4==0)):
edited Nov 22 '18 at 1:10
Supa Mega Ducky Momo da Waffle
1
answered Nov 21 '18 at 23:44
happyhamsturrhappyhamsturr
362
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
This fix looks simple.
The grouping in the while loop is wrong, change it to the following and it should work fine:
while((zints.int4<hwmny)or not(zints.int4>0)and not(zints.int4==0)):
edited Nov 22 '18 at 1:10
Supa Mega Ducky Momo da Waffle
1
answered Nov 21 '18 at 23:44
happyhamsturrhappyhamsturr
362
add a comment |
This fix looks simple.
The grouping in the while loop is wrong, change it to the following and it should work fine:
while((zints.int4<hwmny)or not(zints.int4>0)and not(zints.int4==0)):
edited Nov 22 '18 at 1:10
Supa Mega Ducky Momo da Waffle
1
answered Nov 21 '18 at 23:44
happyhamsturrhappyhamsturr
362
add a comment |
This fix looks simple.
The grouping in the while loop is wrong, change it to the following and it should work fine:
while((zints.int4<hwmny)or not(zints.int4>0)and not(zints.int4==0)):
edited Nov 22 '18 at 1:10
Supa Mega Ducky Momo da Waffle
1
answered Nov 21 '18 at 23:44
happyhamsturrhappyhamsturr
362
This fix looks simple.
The grouping in the while loop is wrong, change it to the following and it should work fine:
while((zints.int4<hwmny)or not(zints.int4>0)and not(zints.int4==0)):
edited Nov 22 '18 at 1:10
Supa Mega Ducky Momo da Waffle
1
answered Nov 21 '18 at 23:44
happyhamsturrhappyhamsturr
362
edited Nov 22 '18 at 1:10
Supa Mega Ducky Momo da Waffle
1
edited Nov 22 '18 at 1:10
Supa Mega Ducky Momo da Waffle
1
edited Nov 22 '18 at 1:10
Supa Mega Ducky Momo da Waffle
1
1
answered Nov 21 '18 at 23:44
happyhamsturrhappyhamsturr
362
answered Nov 21 '18 at 23:44
happyhamsturrhappyhamsturr
362
answered Nov 21 '18 at 23:44
happyhamsturrhappyhamsturr
362
362
add a comment |
add a comment |
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