From 8c2775c13aa3f8223f73d80106e52a02a0a4f77d Mon Sep 17 00:00:00 2001
From: MattBrth <36452374+MattBrth@users.noreply.github.com>
Date: Wed, 31 Jan 2024 20:13:30 +0100
Subject: [PATCH] refactor(dataframe): avoid chained assignment in replace
operation
---
CHANGELOG.md | 1 +
influxdb_client/client/write/dataframe_serializer.py | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1bf2187..856beb89 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
### Bug Fixes
1. [#636](https://github.com/influxdata/influxdb-client-python/pull/636): Handle missing data in data frames
+2. [#638](https://github.com/influxdata/influxdb-client-python/pull/638): Refactor DataFrame operations to avoid chained assignment and resolve FutureWarning in pandas, ensuring compatibility with pandas 3.0.
## 1.40.0 [2024-01-30]
diff --git a/influxdb_client/client/write/dataframe_serializer.py b/influxdb_client/client/write/dataframe_serializer.py
index 6c028716..98262526 100644
--- a/influxdb_client/client/write/dataframe_serializer.py
+++ b/influxdb_client/client/write/dataframe_serializer.py
@@ -234,7 +234,7 @@ def __init__(self, data_frame, point_settings, precision=DEFAULT_WRITE_PRECISION
for k, v in dict(data_frame.dtypes).items():
if k in data_frame_tag_columns:
- data_frame[k].replace('', np.nan, inplace=True)
+ data_frame.replace({k: ''}, np.nan, inplace=True)
self.data_frame = data_frame
self.f = f
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