MNT: fix pylint and cyclic imports again

Author: MateusStano

rocketpy/plots/plot_helpers.py

@@ -3,11 +3,22 @@
 import matplotlib.pyplot as plt
 from matplotlib.figure import Figure
 
-from ..tools import get_matplotlib_supported_file_endings
-
 SAVEFIG_DPI = 300
 
 
+def get_matplotlib_supported_file_endings():
+    """Get file endings supported by matplotlib.
+
+    Returns
+    -------
+    list[str]
+        List of file endings prepended with a dot.
+    """
+    filetypes = plt.gcf().canvas.get_supported_filetypes().keys()
+    filetypes = ["." + filetype for filetype in filetypes]
+    return filetypes
+
+
 def show_or_save_plot(filename=None):
     """Shows or saves the current matplotlib plot. If a filename is given, the
     plot will be saved, otherwise it will be shown.

rocketpy/tools.py

@@ -122,7 +122,7 @@ def create_regular_grid_function(
     variable_names,
     coeff_name,
     extrapolation,
-):
+):  # pylint: disable=import-outside-toplevel
     """Create a regular-grid Function when CSV samples form a full grid.
 
     Parameters
@@ -142,7 +142,9 @@ def create_regular_grid_function(
         A ``Function`` configured with ``regular_grid`` interpolation when the
         CSV data forms a strict Cartesian grid, otherwise ``None``.
     """
-    from rocketpy.mathutils.function import Function
+    from rocketpy.mathutils.function import (  # pylint: disable=import-outside-toplevel
+        Function,  # pylint: disable=import-outside-toplevel
+    )
 
     return Function.from_regular_grid_csv(
         csv_source,
@@ -152,14 +154,16 @@ def create_regular_grid_function(
     )
 
 
-def load_generic_surface_csv(file_path, coeff_name):  # pylint: disable=too-many-statements
+def load_generic_surface_csv(file_path, coeff_name):  # pylint: disable=too-many-statements,import-outside-toplevel
     """Load GenericSurface coefficient CSV into a 7D Function.
 
     This loader expects header-based CSV data with one or more independent
     variables among: alpha, beta, mach, reynolds, pitch_rate, yaw_rate,
     roll_rate.
     """
-    from rocketpy.mathutils.function import Function
+    from rocketpy.mathutils.function import (  # pylint: disable=import-outside-toplevel
+        Function,  # pylint: disable=import-outside-toplevel
+    )
 
     independent_vars = [
         "alpha",
@@ -239,13 +243,15 @@ def wrapper(alpha, beta, mach, reynolds, pitch_rate, yaw_rate, roll_rate):
     )
 
 
-def load_rocket_drag_csv(file_path, coeff_name):  # pylint: disable=too-many-statements
+def load_rocket_drag_csv(file_path, coeff_name):  # pylint: disable=too-many-statements,import-outside-toplevel
     """Load Rocket drag CSV into a 7D Function.
 
     Supports either headerless two-column (mach, coefficient) tables or
     header-based multi-variable CSV tables.
     """
-    from rocketpy.mathutils.function import Function
+    from rocketpy.mathutils.function import (  # pylint: disable=import-outside-toplevel
+        Function,  # pylint: disable=import-outside-toplevel
+    )
 
     independent_vars = [
         "alpha",