misc: allow _ as first variable character (for legacy ezt compat) (#53987)
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@ -163,7 +163,7 @@ class CompatibilityNamesDict(dict):
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# custom dictionary that provides automatic fallback to legacy variable
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# names (namespaced with underscores)
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valid_key_regex = re.compile(r'^[a-zA-Z][a-zA-Z0-9_]*$')
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valid_key_regex = re.compile(r'^[a-zA-Z_][a-zA-Z0-9_]*$')
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def get(self, key, default=None):
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try:
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