automating the manual stuff
<p>I'm automating our daily stuff .Here my code takes absolute path of a directory as input. It read each file in the directory which is  sorted by file name. and then it Concatenate the content of each file to form a string.The final concatenated string needs to get validated. If string is valid it will yield true else false if it is invalid expression.I'm thinking 
valid expression : "( a+ b ) * c + (d /e )', I
Invalid expression : "( a + b ".</p>

<p>This is below code that was being used to do the stuff.</p>

<pre><code>from math import *
import os
import glob

Path = os.path.abspath("mydir/myfile.txt")
files = glob.glob(Path)
for name in files:
    try:
        with open(name) as f:
            s+=f.read()
            sys.stdout.write(s)
    except IOError as exec:
        if exc.errno != errno.EISDIR:
            raise

def validateSyntax(a):
    functions = {'__builtins__': None}
    variables = {'__builtins__': None}
    functions = {'acos': acos,
        'asin': asin,
        'atan': atan,
        'atan2': atan2,
        'ceil': ceil,
        'cos': cos,
        'cosh': cosh,
        'degrees': degrees,
        'exp': exp,
        'fabs':fabs,
        'floor': floor,
        'fmod': fmod,
        'frexp': frexp,
        'hypot': hypot,
        'ldexp': ldexp,
        'log': log,
        'log10': log10,
        'modf': modf,
        'pow': pow,
        'radians': radians,
        'sin': sin,
        'sinh': sinh,
        'sqrt': sqrt,
        'tan': tan,
        'tanh': tanh}

    variables = {'e': e, 'pi': pi}

    try:
        eval(s,variables, functions)
    except (SyntaxError, NameError, ZeroDivisionError):
        return False
    else:
        pass
</code></pre>