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<title>6.8.1.2 Exceptions
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<H3><A NAME=
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Exceptions raised in the child process, before the new program has
started to execute, will be re-raised in the parent. Additionally,
the exception object will have one extra attribute called
<tt class=
"member">child_traceback
</tt>, which is a string containing traceback
information from the childs point of view.
The most common exception raised is
<tt class=
"exception">OSError
</tt>. This occurs,
for example, when trying to execute a non-existent file. Applications
should prepare for
<tt class=
"exception">OSError
</tt> exceptions.
A
<tt class=
"exception">ValueError
</tt> will be raised if
<tt class=
"class">Popen
</tt> is called
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<span class=
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2.4.2, documentation updated on
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2005.
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