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    <p>You're 3 years 8 months wiser since you posted so I'm assuming you'd have figured the first issue out, but given that a solution has not yet been posted (primarily because no one seemed to have a problem with the first issue), the following is my solution.</p> <h2>[UPDATED]</h2> <p>The last solution I provided was incorrect. Below I am providing the correct solution and explaining it in detail using code that I executed.</p> <p><strong>The problem is inherent in Python's <code>execfile()</code> builtin. Its one of the reasons that function has been deprecated in Python 3.x.</strong></p> <p>When you executed <code>execfile()</code> inside <code>runme()</code>, the objects <code>spam()</code> and <code>eggs()</code> were loaded into method <code>runme()</code>'s namespace, and not into the global namespace <em>(as they should ideally be)</em>. Consider the following code:</p> <h1>myscript.py</h1> <pre><code>def spam(): print 'spam' def eggs(): if 'spam' not in globals(): print 'method spam() is not present in global namespace' spam() try: eggs() except Exception as e: print e </code></pre> <h1>mainprogram.py</h1> <pre><code>class mainprogram(): def runme(self): execfile("myscript.py") print 'Objects lying in local namespace of runme() are -' print locals() this = mainprogram() this.runme() </code></pre> <h1>Interpreter Output</h1> <pre><code>&gt;&gt;&gt;import mainprogram method spam() is not present in global namespace name 'spam' is not defined Objects lying in local namespace of runme() are - {'e': NameError("name 'spam' is not defined",), 'spam': &lt;function spam at 0x000000000000002B&gt;, 'eggs': &lt;function eggs at 0x000000000000002C&gt;, 'self': &lt;mainprogram.mainprogram instance at 0x000000000000002D&gt;} </code></pre> <p>From the output you can see that <code>spam()</code> is not in the global namespace, but in method <code>runme()</code>'s namespace. So hypothetically, the correct way to call <code>spam()</code> would have been</p> <pre><code>def eggs(): global this this.runme.spam() </code></pre> <p>However, there is no way to access <code>spam()</code> while it is lying inside <code>runme()</code>'s namespace. The solution, therefore, is to insert <code>spam()</code> in the global namespace as follows:</p> <h1>myscript.py</h1> <pre><code>global spam def spam(): print "spam" def eggs(): spam() eggs() </code></pre> <p>This will ensure that a reference to object <code>spam()</code> is created inside the <code>globals()</code> dictionary (i.e., the global namespace), making it callable from <code>eggs()</code>.</p>
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