fixed pandas import

Jay Clifford · Jay Clifford · commit a425d53cc470 · 2023-07-25T13:05:07.000+01:00
diff --git a/Examples/pokemon-trainer/basic-write.py b/Examples/pokemon-trainer/basic-write.py
@@ -1,6 +1,4 @@
 from influxdb_client_3 import InfluxDBClient3, Point
-import pandas as pd
-import numpy as np
 import datetime
 
 
diff --git a/README.md b/README.md
@@ -27,10 +27,10 @@
 
 ## Dependencies
 
-- `pyarrow`
-- `influxdb-client`
+- `pyarrow` (automatically installed)
+- `influxdb-client` (automatically installed)
+- `pandas` (optional)
   
-*These are installed as part of the package*
 
 ## Installation
 
@@ -40,9 +40,13 @@ You can install 'influxdb3-python' using `pip`:
 pip install influxdb3-python
 ```
 
+Note: This does not include Pandas support. If you would like to use key features such as `to_pandas()`  and `write_file()` you will need to install `pandas` separately.
+
 *Note: Please make sure you are using 3.6 or above. For the best performance use 3.11+*
 
 # Usage
+One of the easiest ways to get started is to checkout the ["Pokemon-Trainer cookbook"](Examples/pokemon-trainer/cookbook.ipynb). This scenario takes you through the basics of both the client library and Pyarrow.
+
 ## Importing the Module
 ```python
 from influxdb_client_3 import InfluxDBClient3, Point
diff --git a/influxdb_client_3/read_file.py b/influxdb_client_3/read_file.py
@@ -2,7 +2,9 @@
 import pyarrow.csv as csv
 import pyarrow.feather as feather
 import pyarrow.parquet as parquet
-import pandas as pd
+
+
+
 
 # Check if the OS is not Windows
 if os.name != 'nt':
@@ -21,6 +23,11 @@ def __init__(self, file, file_parser_options=None):
         :type file: str
         :param kwargs: Additional arguments for file loading functions.
         """
+        try:
+            import pandas as pd
+        except ImportError:
+            raise ImportError("Pandas is required for write_file(). Please install it using 'pip install pandas' or 'pip install influxdb3-python[pandas]'")
+
         self._file = file
         self._kwargs = file_parser_options if file_parser_options is not None else {}
 
diff --git a/setup.py b/setup.py
@@ -36,6 +36,7 @@ def get_version():
     author_email='contact@influxdata.com',
     url='https://github.com/InfluxCommunity/influxdb3-python',
     packages=['influxdb_client_3'],
+    extras_require={'pandas': ['pandas']},
     install_requires=['pyarrow','influxdb-client'],
     classifiers=[
         'Development Status :: 4 - Beta',
