From b322ca275b4da3e316ad64f8f91560e1584ea7bb Mon Sep 17 00:00:00 2001 From: Isil Demir Date: Tue, 21 Mar 2017 17:58:06 -0700 Subject: [PATCH 1/2] fix for lost precision on float field values --- influxdb/line_protocol.py | 10 ++++++++++ influxdb/tests/test_line_protocol.py | 16 ++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/influxdb/line_protocol.py b/influxdb/line_protocol.py index 7c8c8f24..180aea31 100644 --- a/influxdb/line_protocol.py +++ b/influxdb/line_protocol.py @@ -75,12 +75,22 @@ def quote_literal(value): ) +def _is_float(value): + try: + float(value) + except ValueError: + return False + return True + + def _escape_value(value): value = _get_unicode(value) if isinstance(value, text_type) and value != '': return quote_ident(value) elif isinstance(value, integer_types) and not isinstance(value, bool): return str(value) + 'i' + elif _is_float(value): + return repr(value) else: return str(value) diff --git a/influxdb/tests/test_line_protocol.py b/influxdb/tests/test_line_protocol.py index 726f8705..fc45971e 100644 --- a/influxdb/tests/test_line_protocol.py +++ b/influxdb/tests/test_line_protocol.py @@ -119,3 +119,19 @@ def test_quote_literal(self): line_protocol.quote_literal(r"""\foo ' bar " Örf"""), r"""'\\foo \' bar " Örf'""" ) + + def test_float_with_long_decimal_fraction(self): + data = { + "points": [ + { + "measurement": "test", + "fields": { + "float_val": 1.0000000000000009, + } + } + ] + } + self.assertEqual( + line_protocol.make_lines(data), + 'test float_val=1.0000000000000009\n' + ) From eb049f197e76575e53ff883ecd2eff05c519da00 Mon Sep 17 00:00:00 2001 From: Isil Demir Date: Wed, 5 Apr 2017 17:14:46 -0700 Subject: [PATCH 2/2] docstring for pep257 compliance --- influxdb/tests/test_line_protocol.py | 1 + 1 file changed, 1 insertion(+) diff --git a/influxdb/tests/test_line_protocol.py b/influxdb/tests/test_line_protocol.py index fc45971e..61f54557 100644 --- a/influxdb/tests/test_line_protocol.py +++ b/influxdb/tests/test_line_protocol.py @@ -121,6 +121,7 @@ def test_quote_literal(self): ) def test_float_with_long_decimal_fraction(self): + """Ensure precision is preserved when casting floats into strings.""" data = { "points": [ { pFad - Phonifier reborn

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