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POPython error "NameError: global name 'self' is not defined" when calling another method in same class
 

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  1. POPython error "NameError: global name 'self' is not defined" when calling another method in same class
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    <p>I get a weird error:</p> <pre><code>Traceback (most recent call last): File "/remote/us01home15/ldagan/python/add_parallel_definition.py", line 36, in &lt;module&gt; new_netlist.lines=orig_netlist.add_parallel_extention(cell_name,parallel,int(level)) File "/remote/us01home15/ldagan/python/hspice_netlist.py", line 70, in add_parallel_extention new_cells_definition=self.gen_parallel_hierarchy(num,self.lines[i]) File "/remote/us01home15/ldagan/python/hspice_netlist.py", line 52, in gen_parallel_hierarchy cell_lines=self.gen_parallel_inst(num_of_parallel,cell_1st_line) NameError: global name 'self' is not defined </code></pre> <p>From all the tutorials that I have seen, calling a different method from the same class is via self.method_name</p> <p>It's a script instantiating a class. The script is:</p> <pre><code>#!/depot/Python-3.1.1/bin/python3.1 #gets a netlist and a cell name. #generates a new netlist with the parallel instanciation import sys import re from operator import itemgetter sys.path.append('/remote/us01home15/ldagan/python/') from hspice_netlist import hspice_netlist command="" # initializing argument string for l in sys.argv: command=command + " " + "".join(l) print (len(sys.argv)) print (command) if (len(sys.argv) &lt;4): sys.exit("Pleas input original file name &amp; new file name") orig_netlist=hspice_netlist("file=" + "".join(sys.argv[1])) #reading new netlist new_netlist=hspice_netlist("") #empty netlist match=re.search(r"subckt\s*=\s*(\S+)",command) if (match): cell_name=match.group(1) #cell to be parallelized name else: sys.exit("Please input subckt= &lt;subckt name&gt;") match=re.search(r"level\s*=\s*(\S+)",command) if (match): level=match.group(1) #levels of netlist name else: sys.exit("Please input level=&lt;level name&gt;") match=re.search(r"parallel\s*=\s*(\S+)",command) if (match): parallel=match.group(1) #new netlist name else: sys.exit("Please input parallel=&lt;parallel name&gt;") new_netlist.lines=orig_netlist.add_parallel_extention(cell_name,parallel,int(level)) match=re.search(r"outfile\s*=\s*(\S+)",command) if (match): output_filename=match.group[1] outfile=open(output_filename,'w') outfile.write("".join(new_netlist.lines)) </code></pre> <p>The class code is:</p> <pre><code>import sys import re from collections import defaultdict class hspice_netlist: def __init__(self,cmd): cmd_match=re.search(r"file\s*=\s*(\S+)",cmd) if (cmd_match): filename=cmd_match.group(1) self.infile = open(filename, 'r') self.lines=self.infile.readlines() #reading the lines self.infile.close() #closing filehandle def input_lines(self,lines): self.lines=lines def get_subckt_lines(self,name): gotit=0 ret_lines=[] find_sub=re.compile("^.sub\S*\s+"+name, re.IGNORECASE) find_end=re.compile('^.ends', re.IGNORECASE) for line in self.lines: if (not gotit): if (find_sub.search(line)): gotit=1 ret_lines.append(line) else: ret_lines.append(line) if (find_end.search(line)): return ret_lines sys.exit("Could not find the lines for circuit " + name + '\n') def gen_parallel_inst(num,cell_1st_line): ret_lines=[] #starting a fresh!! cell_data=re.search(r"^\S+\s+(\S+)(\s+.*)", cell_1st_line) cell_name=cell_data.group(1) # got the cell name new_cell_name=cell_name + '__' + str(num) # new cell name nodes=cell_data.group(2) # interface ret_lines.append("".join([".sub ", new_cell_name,nodes,"\n"])) iter=num if (not (re.search(r"\s+$",nodes))): nodes=nodes + ' ' #need a space before the cell name, add if it doesn't exist while(iter &gt; 0): line="x" + str(iter) + nodes + cell_name + "\n" ret_lines.append(line) iter=iter-1 ret_lines.append(".ends\n") #end of subcircuit definition return return_lines def gen_parallel_hierarchy(num_of_parallel,level,cell_1st_line): '''What that it does: Gets a cell name, then finds that cell's interface definition. It then simply relicates the cell, in parallel, then into hierarchies, ending with new cells' definitions. It is useful for the HSPICE BA issue. It runs recusively. Currently it supports 1 line for interface definition, and no parameters for the cell @ this time ''' ret_lines=[] cell_lines=self.gen_parallel_inst(num_of_parallel,cell_1st_line) ret_lines.extend(cell_lines) if (level&gt;0): ret_lines.extend(self.gen_parallel_hierarchy(num_of_parallel,level-1,cell_lines[0])) return ret_lines def add_parallel_extention(self,cell_name,num,level): ''' Get a cell name + definitions and generates a new netlist ''' i=0 regi=re.compile("^.sub\S*\s+" + cell_name) m=-1 while ( (i+1 &lt; len(self.lines)) &amp; ( not m )): i=i+1 m=regi.search(lines[i]) #finding the line if (not m): sys.exit("could not find subcircuit definition of " + cell_name + "\n") new_cells_definition=self.gen_parallel_hierarchy(num,self.lines[i]) i=i-1 ret_lines=self.lines[0:i] # creating return variable, using extend for performance ret_lines.extend(new_cells_definition) ret_lines.extend(self.lines[i+1:len(self.lines)]) return ret_lines #get the cell #write the level </code></pre> <p>I am definitely doing something fundamentally wrong, but I don't know what. Thanks for helping an EE newbe (to Python).</p>
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