Merge branch 'develop' into enh/add_dry_mass_total_mass_ratio

Author: Lucas-Prates

CHANGELOG.md

@@ -50,6 +50,7 @@ Attention: The newest changes should be on top -->
 
 ### Fixed
 
+- BUG: Fix Motor Zero Dry Mass Check [#710](https://github.com/RocketPy-Team/RocketPy/pull/710)
 - BUG: Fix Environment.max_expected_height for custom atmosphere [#707](https://github.com/RocketPy-Team/RocketPy/pull/707)
 - BUG: Initialize _Controller Init Parameters [#703](https://github.com/RocketPy-Team/RocketPy/pull/703)
 - BUG: Rail Buttons Not Accepted in Add Surfaces [#701](https://github.com/RocketPy-Team/RocketPy/pull/701)

docs/reference/classes/sensors/index.rst

@@ -9,4 +9,4 @@ Sensor Classes
    Accelerometer Class <accelerometer>
    Barometer Class <barometer>
    Gyroscope Class <gyroscope>
-   GNSS Receiver Class <gnss>
+   GNSS Receiver Class <gnss_receiver>

docs/user/environment/0-setup/elevation.rst

@@ -35,7 +35,7 @@ It is integrated with RocketPy and can be used as follows.
 
 First, initialize a new Environment:
 
-.. jupyter-execute::
+.. code-block:: python
 
     env = Environment(
         date=(2019, 2, 10, 18),
@@ -45,13 +45,13 @@ First, initialize a new Environment:
 
 Then, set the elevation using Open-Elevation:
 
-.. jupyter-execute::
+.. code-block:: python
 
     env.set_elevation("Open-Elevation")
 
 To get information from the Environment, use the following method:
 
-.. jupyter-execute::
+.. code-block:: python
 
     env.prints.launch_site_details()
 

docs/user/environment/1-atm-models/soundings.rst

@@ -70,7 +70,7 @@ We will use the same sounding station as we did for the Wyoming Soundings.
 
 Initialize a new Environment instance:
 
-.. jupyter-execute::
+.. code-block:: python
 
     url = r"https://rucsoundings.noaa.gov/get_raobs.cgi?data_source=RAOB&latest=latest&start_year=2019&start_month_name=Feb&start_mday=5&start_hour=12&start_min=0&n_hrs=1.0&fcst_len=shortest&airport=83779&text=Ascii%20text%20%28GSD%20format%29&hydrometeors=false&start=latest"
 

rocketpy/motors/motor.py

@@ -370,7 +370,7 @@ def dry_mass(self, dry_mass):
         dry_mass : float
             Motor dry mass in kg.
         """
-        if dry_mass:
+        if dry_mass is not None:
             if isinstance(dry_mass, (int, float)):
                 self._dry_mass = dry_mass
             else: