Question

Im tring to pull data once from Mysql into “c.”
Then create an NUMPY array and a dict from the data.
It seems that once I zip ‘c’ it no longer stay in orig form.
Can this be done?

import csv, pyodbc#, 
from numpy import *
import numpy as np


csr = cxn.cursor()
c = csr.execute("Select * from p.s")
s = zip(*c)
data = s[0]

for each in data:
    v= dict((each, []) for each in data)
print v

d=[]
for each in c:
    d.append(each)

a = asarray(d)
print a

Answer 1

A few more comments:

1. This code

   for each in data:
       v= dict((each, []) for each in data)
   print v
   

   creates the same dictionary over and over again. You can simply drop the outer for-loop and will get the same result.

2. The part

   d=[]
   for each in c:
       d.append(each)
   

   is equivalent to

   d = list(c)
   

3. Your whole code can be written as

   csr = cxn.cursor()
   c = csr.execute("Select * from p.s")
   a = numpy.fromiter(c)
   v = dict((key, []) for key in a[:,0])