def process_nested_parent_str(attr_str):

'''

The first letter should be a parenthesis

input string: "(1,4,(5,6),7)"

output: tuple (1,4,(4,6),7)

'''

params = []

agg_scope_level = 0

current_param = ''

for i,ch in enumerate(attr_str):

if ch==',':

params.append(current_param)

current_param = ''

elif ch=='(':

agg_scope_level +=1

elif ch==')':

agg_scope_level = 0

elif agg_scope_level == 0:

current_param += ch

return params

def process_nested_parent_str2(attr_str,idx=0):

'''

The first letter should be a parenthesis

input string: "(1,4,(5,6),7)"

output: ['1','4',['5','6'],'7']

'''

#print 'Entering function with string %s'%(attr_str)

params = []

current_param = ''

k = 0

while (k<len(attr_str)):

#print 'k in this function:%i'%k

ch = attr_str[k]

k += 1

if ch==',':

#print "Add param:",current_param

params.append(current_param)

current_param = ''

elif ch=='(':

nv = attr_str[k:]

#print "Up one level parenthesis:%s"%(nv)

current_param, progress = process_nested_parent_str2(nv)

#print "Adding the list returned from nested",current_param

params.append(current_param)

current_param = ''

k += progress+1

elif ch==')':

#print "Down one level parenthesis: %i characters parsed"%k

params.append(current_param)

#print "Current params:",params#k -= acc-2

return params,k

else:

current_param += ch

#print "Ch:",ch

#print "k:",k

#raw_input("")

#idx += 1

params.append(current_param)

return params,k

#print process_nested_parent_str2('1,2,3,4,5,6')

#idx=0

#print process_nested_parent_str2("'A','B','C'")

print(process_nested_parent_str2("'A'")[0])

print(process_nested_parent_str2("30.0,0.0,5.0")[0])

print(process_nested_parent_str2("(Thomas)")[0])

print(process_nested_parent_str2("Thomas, Paviot, ouais")[0])

print(process_nested_parent_str2("1,2,(3,4,5),6,7,8")[0])

print(process_nested_parent_str2("(#9149,#9166),#9142,.T.")[0])