How to use _DoSubstitute method in autotest

Best Python code snippet using autotest_python

_jsontemplate.py

Source:_jsontemplate.py

...1453    """{.define TITLE}"""1454    # We do nothing here -- the block is parsed into the template tree, turned1455    # into a Template() instance, and then the template is called as a formatter1456    # in _DoSubstitute.1457def _DoSubstitute(args, context, callback, trace):1458    """Variable substitution, i.e. {foo}1459  We also implement template formatters here, i.e.  {foo|template bar} as well1460  as {.template FOO} for templates that operate on the root of the data dict1461  rather than a subtree.1462  """1463    name, formatters = args1464    1465    if name is None:1466        value = context.Root()  # don't use the cursor1467    else:1468        try:1469            value = context.Lookup(name)1470        except TypeError as e:1471            raise EvaluationError(...

jsontemplate.py

Source:jsontemplate.py

...1277  """{.define TITLE}"""1278  # We do nothing here -- the block is parsed into the template tree, turned1279  # into a Template() instance, and then the template is called as a formatter1280  # in _DoSubstitute.1281def _DoSubstitute(args, context, callback, trace):1282  """Variable substitution, i.e. {foo}1283  We also implement template formatters here, i.e.  {foo|template bar} as well1284  as {.template FOO} for templates that operate on the root of the data dict1285  rather than a subtree.1286  """1287  name, formatters = args1288  if name is None:1289    value = context.Root()  # don't use the cursor1290  else:1291    try:1292      value = context.Lookup(name)1293    except TypeError, e:1294      raise EvaluationError(1295          'Error evaluating %r in context %r: %r' % (name, context, e))...

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