class Class1 :
   def __init__ (self) :
      self.field1 = ""
      self.field2 = 0
      self.field3 = "***"
 
#====================================================
sample_dic = {}
C = Class1()
C.field1 = "Test1"
C.field2 = 1
C.field3 = "Test1A"
sample_dic["test1"] = C
 
C = Class1()
C.field1 = "Test2"
C.field2 = 2
C.field3 = "Test2A"
sample_dic["test2"] = C
 
C = Class1()
sample_dic["test3"] = C
 
##   note that dictionary keys are not in any order
for key in sample_dic.keys() :
   print key, sample_dic[key].field1, sample_dic[key].field2, \
                 sample_dic[key].field3
 
sample_dic["test3"].field2=3
print "updated field2 =", sample_dic["test3"].field2

dict = {}
dict[0] = 0
dict[1] = {}
dict[2] = 2
print dict

for p in pressures:
	q70in.resetKeyword( "expansionRatio", float(p) )
	q70in.writeInput( prefix + tempInput )  
	commands.getstatusoutput( runq70 )
	q70out = q70.Q70Output( prefix + outputFile )
	#results[p] = {}
	#results[p]['Performance'] = q70out.performance
	#results[p]['Conditions'] = q70out.conditions
	results[p] = indyResult()
	results[p].performance = q70out.performance
	results[p].conditions = q70out.conditions
	print type(p), len(p), p
	for i in results:
		print i
		print results[i].performance

>>> a = []
>>> b = a  # b and a point to the same list now.
>>> b.append(1)
>>> b
[1]
>>> a
[1]
>>>

>>> def test_func():
	results = {}
	for x in range(4):
		results[x] = {}
		results[x]["conditions"] = x
	print results
 
 
>>> test_func()
{0: {'conditions': 0}, 1: {'conditions': 1}, 2: {'conditions': 2}, 3: {'conditions': 3}}
>>> 
>>> def test_func2():
	results = {}
	mydict = {}
	for x in range(4):
		results[x] = mydict
		results[x]["conditions"] = x
	print results
 
 
>>> test_func2()
{0: {'conditions': 3}, 1: {'conditions': 3}, 2: {'conditions': 3}, 3: {'conditions': 3}}
>>>

import sqlite3 as sqlite
 
##----------------------------------------------------------------------
def add_rec(cur, con, add_tuple):
   print "add_rec", len(add_tuple)
   cur.execute("insert into test_it values (?, ?, ?, ?, ?, ?, ?, ?, ?)", add_tuple)
   con.commit()
 
##----------------------------------------------------------------------
def print_all_recs(cur):
   # Execute the SELECT statement:
   print "Printing all recs"
   cur.execute("select * from test_it")
 
   # Retrieve all rows as a sequence and print that sequence:
   recs_list = cur.fetchall()
   for rec in recs_list:
      print rec
      print "     stage, REAC_W =", rec[1], rec[5]
 
##----------------------------------------------------------------------
def add_test_data(cur, con):
   #----->              Stage     REAC_PS  WR(T)/P    TTO       REAC_W    W0       0wR(THCR)E/D  PTO
   data_list=[ ('2.0', 'Stage1', '0.509',  '4.3010', '1602.30', '0.515', '3.191',   '2.8191',   '29.7010'), \
               ('2.0', 'Stage2', '0.488',  '6.0074', '1470.43', '0.500', '3.200',   '3.9309',   '20.4275'), \
               ('2.0', 'Stage1', '0.524',  '4.4623', '1602.30', '0.560', '3.311',   '2.9243',   '29.7010'), \
               ('2.0', 'Stage2', '0.579',  '6.6682', '1444.78', '0.700', '3.320',   '4.3593',   '18.9262'), \
               ('3.0', 'Stage1', '0.524',  '4.4623', '1602.30', '0.560', '3.311',   '2.9243',   '29.7010'), \
               ('3.0', 'Stage2', '0.579',  '6.6682', '1444.78', '0.700', '3.320',   '4.3593',   '18.9262'), \
               ('3.5', 'Stage1', '0.525',  '4.4695', '1602.30', '0.563', '3.316',   '2.9290',   '29.7010') ]
 
   for data_tuple in data_list :
      add_rec(cur, con, data_tuple)
 
##----------------------------------------------------------------------
if __name__ == "__main__":
   # Create a connection to the (memory) database file
   con = sqlite.connect(':memory:')
 
   # Get a Cursor object that operates in the context of Connection con
   cur = con.cursor()
 
   cur.execute("CREATE TABLE test_it (number varchar, stage varchar, REAC_PS varchar, WR_T_P varchar, TTO varchar, REAC_W varchar, W0 varchar, wR_THCR_E_D varchar, PTO varchar)")
 
   add_test_data(cur, con)
   print_all_recs(cur)
 
   ##----------------------------------------------------------------------
   print '\n-----SELECT * FROM test_it where number="2.0"-------'
   recs_list=cur.execute('SELECT * FROM test_it where number="2.0"')
   ctr=0
   for row in recs_list:
      print row
      ctr += 1
   print ctr, "recs found"
 
   print '\n-----SELECT * FROM test_it where number="2.0" and stage="Stage1"'
   lookup_dic={"dic_num":"2.0", "dic_st":"Stage1"}
   recs_list=cur.execute('SELECT * FROM test_it where number=:dic_num and stage=:dic_st', \
	                  lookup_dic)
   ctr=0
   for row in recs_list:
      print row
      ctr += 1
   print ctr, "recs found"