From 5658b8ab8bc2bdb4c1b4629d970c087fab3264a2 Mon Sep 17 00:00:00 2001
From: Ryan Howard <ryan.howard@opentrons.com>
Date: Tue, 24 Sep 2024 12:29:05 -0400
Subject: [PATCH] fix(hardware): Fix the pressure sensor log from growing
 infinitely (#16338)

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# Overview
When looking at another bug I saw that this log was growing forever and
this will eventually fill up the diskspace on the robot which is very
bad.
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## Test Plan and Hands on Testing
We can check that this file stays in the <1k range but honestly it would
have shown up in bugs of the disk filling up.
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## Risk assessment
Super low risk, doesn't effect the user at all. this is just a debugging
log.
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---
 hardware/opentrons_hardware/sensors/sensor_driver.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hardware/opentrons_hardware/sensors/sensor_driver.py b/hardware/opentrons_hardware/sensors/sensor_driver.py
index ac40ddf0c11..84780695e66 100644
--- a/hardware/opentrons_hardware/sensors/sensor_driver.py
+++ b/hardware/opentrons_hardware/sensors/sensor_driver.py
@@ -243,7 +243,7 @@ def __init__(
 
     async def __aenter__(self) -> None:
         """Create a csv heading for logging pressure readings."""
-        self.data_file = open(self.data_file, "a")
+        self.data_file = open(self.data_file, "w")
         self.csv_writer = csv.writer(self.data_file)
         self.csv_writer.writerows([self.file_heading, self.sensor_metadata])