add ydb deps

1 files changed, 47 insertions, 0 deletions

diff --git a/contrib/python/prompt-toolkit/py2/prompt_toolkit/token.py b/contrib/python/prompt-toolkit/py2/prompt_toolkit/token.py
new file mode 100644
index 0000000000..5170daf38a
--- /dev/null
+++ b/contrib/python/prompt-toolkit/py2/prompt_toolkit/token.py
@@ -0,0 +1,47 @@
+"""
+The Token class, interchangeable with ``pygments.token``.
+
+A `Token` has some semantics for a piece of text that is given a style through
+a :class:`~prompt_toolkit.styles.Style` class. A pygments lexer for instance,
+returns a list of (Token, text) tuples. Each fragment of text has a token
+assigned, which when combined with a style sheet, will determine the fine
+style.
+"""
+
+# If we don't need any lexers or style classes from Pygments, we don't want
+# Pygments to be installed for only the following 10 lines of code. So, there
+# is some duplication, but this should stay compatible with Pygments.
+
+__all__ = (
+    'Token',
+    'ZeroWidthEscape',
+)
+
+
+class _TokenType(tuple):
+    def __getattr__(self, val):
+        if not val or not val[0].isupper():
+            return tuple.__getattribute__(self, val)
+
+        new = _TokenType(self + (val,))
+        setattr(self, val, new)
+        return new
+
+    def __repr__(self):
+        return 'Token' + (self and '.' or '') + '.'.join(self)
+
+
+# Prefer the Token class from Pygments. If Pygments is not installed, use our
+# minimalistic Token class.
+try:
+    from pygments.token import Token
+except ImportError:
+    Token = _TokenType()
+
+
+# Built-in tokens:
+
+#: `ZeroWidthEscape` can be used for raw VT escape sequences that don't
+#: cause the cursor position to move. (E.g. FinalTerm's escape sequences
+#: for shell integration.)
+ZeroWidthEscape = Token.ZeroWidthEscape