Problem with undefined global vars

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I'm trying to simplify some overly complex Python+Excel+Cheetah
template code in preparation for some more substantial changes. I'm
confused by a NameError exception I'm receiving. I define my template
like so:

trd_template = Template.compile(file=template_file, cacheDirForModuleFiles=".")

then call/expand it like so:

tmpl = trd_template(searchList={"params": p})
output_file.write(str(tmpl))

where p is a dictionary of parameters I've collected from an Excel
spreadsheet.

When I run my config file generation program, Cheetah complains with
this traceback:

Traceback (most recent call last):
  File "scripts/generate_config_xml.py", line 282, in <module>
    sys.exit(main(sys.argv[1:]))
  File "scripts/generate_config_xml.py", line 224, in main
    output_file.write(str(tmpl))
  File "/opt/local/lib/python2.7/site-packages/Cheetah/Template.py",
line 1005, in __str__
    rc = getattr(self, mainMethName)()
  File "configs_trd_tmpl.py", line 97, in respond
NameError: global name 'params' is not defined

I've trimmed my template down to this:

${sorted(params["Accounts"].values())}

#for $c in sorted(params["TradableSymbols"].split(","))
<key>symbol</key>                 <string>${c}</string>
#end for

#for $acct in sorted(params["Accounts"].values())
<key>name</key>              <string>${acct}</string>
#end for

If I ${...}-wrap the uses of params the compilation step fails (with a
nice Cheetah traceback). As is, it complains about the missing global
name. What am I missing?

Thx,

Skip

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<div dir="ltr"><pre>I&#39;m trying to simplify some overly complex Python+Excel+Cheetah
template code in preparation for some more substantial changes. I&#39;m
confused by a NameError exception I&#39;m receiving. I define my template
like so:

trd_template = Template.compile(file=template_file, cacheDirForModuleFiles=&quot;.&quot;)

then call/expand it like so:

tmpl = trd_template(searchList={&quot;params&quot;: p})
output_file.write(str(tmpl))

where p is a dictionary of parameters I&#39;ve collected from an Excel
spreadsheet.

When I run my config file generation program, Cheetah complains with
this traceback:

Traceback (most recent call last):
  File &quot;scripts/generate_config_xml.py&quot;, line 282, in &lt;module&gt;
    sys.exit(main(sys.argv[1:]))
  File &quot;scripts/generate_config_xml.py&quot;, line 224, in main
    output_file.write(str(tmpl))
  File &quot;/opt/local/lib/python2.7/site-packages/Cheetah/Template.py&quot;, line 1005, in __str__
    rc = getattr(self, mainMethName)()
  File &quot;configs_trd_tmpl.py&quot;, line 97, in respond
NameError: global name &#39;params&#39; is not defined

I&#39;ve trimmed my template down to this:

${sorted(params[&quot;Accounts&quot;].values())}

#for $c in sorted(params[&quot;TradableSymbols&quot;].split(&quot;,&quot;))
&lt;key&gt;symbol&lt;/key&gt;                 &lt;string&gt;${c}&lt;/string&gt;
#end for

#for $acct in sorted(params[&quot;Accounts&quot;].values())
&lt;key&gt;name&lt;/key&gt;              &lt;string&gt;${acct}&lt;/string&gt;
#end for

If I ${...}-wrap the uses of params the compilation step fails (with a
nice Cheetah traceback). As is, it complains about the missing global
name. What am I missing?

Thx,

Skip


</pre></div>

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