New submission from Alexander Shirokov:
Please run debracket.py
It halts immediately and the message
explains the problem.
Regards
Alex
----------
files: debracket.py
messages: 56265
nosy: alexander.shirokov
severity: normal
status: open
title: Error on 'raise' does not show correct line number and Traceback message
type: behavior
versions: Python 2.5
__________________________________
Tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue1244>
__________________________________
#!/usr/bin/python
import os, sys, xml.dom.minidom
a = '\(\(\(1/\(4959476121600 a1^7 a2^7 r^2\)\)\((-r^14 + 14 a1^13 heavi[a1-5*a2-r^2]^2 )\)\)\)'
# Convert the brackets into XML tokens
a = a.replace(r'\(','<bs>\n')
a = a.replace(r'\)','</bs>\n')
a = a.replace('(','<bra>\n')
a = a.replace(')','</bra>\n')
# Enclose the document
a = '<xml>\n'+a+'\n</xml>\n'
# Parse the XML document
dom = xml.dom.minidom.parseString(a)
def convert_node_to_strlist(dom):
try:
#print "tagName=",dom.tagName
dom.tagName
except:
None
a = []
for d in dom.childNodes:
if d.nodeType == d.TEXT_NODE:
t = str(d.data).strip()
if len(t):
a += [t]
else:
a += convert_node_to_strlist(d)
return a
m = convert_node_to_strlist(dom)
#print m
if len(m) != 3 and len(m) != 4: raise
def extract_nom_denom(m):
if len(m) == 3:
if m[0] == '1/':
nom = m[2]
denom = m[1]
elif m[1] == '/':
nom = m[0]
denom = m[2]
else:
raise
elif len(m) == 4:
if m[0] == '-' and m[1] == '1/':
denom = m[0]+m[2]
nom = m[3]
else:
raise
return nom, denom
nom,denom = extract_nom_denom(m)
a = nom
a = a.replace(' + ', '\n+')
a = a.replace(' - ', '\n-')
# Make sure the first token is a signed integer coefficient
q = []
a0 = a.split('\n')
for a in a0:
if len(a) == 0: continue
#print "<<", a
b = a.split()
test_int = 1
#print "|"
try:
c = int(b[0])
except:
test_int = 0
if test_int:
repl = '%+d %s' % ( c, ' '.join(b[1:]))
else:
w = b[0]
if w[0] == '+':
c = 1
w = ''.join(list(w[1:]))
elif w[0] == '-':
c = -1
w = ''.join(list(w[1:]))
else:
c = 1
repl = '%+d %s %s' % ( c, w, ' '.join(b[1:]))
#print '>>', repl
q += [repl]
a = '\n'.join(q)
token='heavi'
# Pad the powers
pad=2
b0 = []
a0 = a.split('\n')
for l in a0:
#print 'l=',l
o0 = []
l0 = l.split()
#print 'l0=',l0
for w in l0:
s = w.split('^')
# This is an ordinary word
if len(s) == 1:
o = w
# This is a power
elif len(s) == 2:
bs = s[0]
pw = int(s[1])
if bs.find(token) == 0:
if pw == 0: raise
o = bs
else:
pw = "%0*d" % ( pad, pw )
o = bs+'^'+pw
else:
print "A. Shirokov: The error occurs with 'raise' in line 154"
print " but Python does not report the line number correctly, by only saying 'File \"./debracket.py\", line 91'"
print " The stack of error messages may have some problem"
print "----------------------------------------------------------------"
raise
o0 += [o]
b0 += [ ' '.join(o0) ]
a = '\n'.join(b0);
print "Done3"
fh = file(fb,"w")
fh.write(a)
fh.close()
print "Done4"
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