[Doc/Python] Add explicit signatures for Cython class constructors

Sphinx is not able to read the signature for the init method of
Cython's cdef classes.

Fixes #1635

doc/sphinx/python/kinetics.rst

@@ -11,11 +11,11 @@ Kinetics Managers
 
 Kinetics
 ^^^^^^^^
-.. autoclass:: Kinetics
+.. autoclass:: Kinetics()
 
 InterfaceKinetics
 ^^^^^^^^^^^^^^^^^
-.. autoclass:: InterfaceKinetics
+.. autoclass:: InterfaceKinetics()
 
 Reactions
 ---------
@@ -25,7 +25,7 @@ This class contains the definition of a single reaction, independent of a specif
 
 Reaction
 ^^^^^^^^
-.. autoclass:: Reaction
+.. autoclass:: Reaction(reactants=None, products=None, rate=None, *, equation=None, init=True, third_body=None)
    :no-undoc-members:
 
 
@@ -103,7 +103,7 @@ ExtensibleRate
 
 InterfaceRateBase
 ^^^^^^^^^^^^^^^^^
-.. autoclass:: InterfaceRateBase
+.. autoclass:: InterfaceRateBase()
    :no-undoc-members:
 
 InterfaceArrheniusRate
@@ -118,7 +118,7 @@ InterfaceBlowersMaselRate
 
 StickRateBase
 ^^^^^^^^^^^^^
-.. autoclass:: StickRateBase
+.. autoclass:: StickRateBase()
    :no-undoc-members:
 
 StickingArrheniusRate
@@ -136,12 +136,12 @@ Auxiliary Reaction Data
 
 ExtensibleRateData
 ^^^^^^^^^^^^^^^^^^
-.. autoclass:: ExtensibleRateData
+.. autoclass:: ExtensibleRateData()
    :no-undoc-members:
 
 ThirdBody
 ^^^^^^^^^
-.. autoclass:: ThirdBody
+.. autoclass:: ThirdBody(collider="M", *, efficiencies=None, default_efficiency=None)
    :no-undoc-members:
 
 Arrhenius
@@ -153,4 +153,4 @@ Reaction Path Analysis
 
 ReactionPathDiagram
 ^^^^^^^^^^^^^^^^^^^
-.. autoclass:: ReactionPathDiagram(Kinetics kin, str element)
+.. autoclass:: ReactionPathDiagram(kin: Kinetics, element: str)

doc/sphinx/python/thermo.rst

@@ -32,7 +32,7 @@ Mixture
 Species
 -------
 
-.. autoclass:: Species
+.. autoclass:: Species(name=None, composition=None, charge=None, size=None, init=True)
 
 Species Thermodynamic Properties
 --------------------------------
@@ -72,7 +72,7 @@ ShomatePoly2
 Element
 -------
 
-.. autoclass:: Element
+.. autoclass:: Element(name_or_symbol_or_atomic_number)
     :no-undoc-members:
 
     .. autoattribute:: num_elements_defined

doc/sphinx/python/utilities.rst

@@ -12,23 +12,23 @@ YAML Input/Output
 AnyMap
 ^^^^^^
 
-.. autoclass:: AnyMap
+.. autoclass:: AnyMap()
 
 YamlWriter
 ^^^^^^^^^^
-.. autoclass:: YamlWriter
+.. autoclass:: YamlWriter()
 
 Unit Conversions
 ----------------
 
 UnitSystem
 ^^^^^^^^^^
-.. autoclass:: UnitSystem
+.. autoclass:: UnitSystem(units)
    :no-undoc-members:
 
 Units
 ^^^^^
-.. autoclass:: Units
+.. autoclass:: Units(name)
    :no-undoc-members:
 
 .. _sec-python-global-funcs:

doc/sphinx/python/zerodim.rst

@@ -11,25 +11,25 @@ Zero-Dimensional Reactor Networks
 Defining Functions
 ------------------
 
-.. autoclass:: Func1
+.. autoclass:: Func1(callable)
 
-.. autoclass:: Tabulated1
+.. autoclass:: Tabulated1(time, fval, method='linear')
 
 Base Classes
 ------------
 
 ReactorBase
 ^^^^^^^^^^^
-.. autoclass:: ReactorBase
+.. autoclass:: ReactorBase()
 
 FlowDevice
 ^^^^^^^^^^
-.. autoclass:: FlowDevice
+.. autoclass:: FlowDevice()
 
 Reactor Networks
 ----------------
 
-.. autoclass:: ReactorNet
+.. autoclass:: ReactorNet(reactors=())
 
 .. _sec-python-reactors:
 
@@ -128,17 +128,17 @@ Flow Controllers
 
 MassFlowController
 ^^^^^^^^^^^^^^^^^^
-.. autoclass:: MassFlowController
+.. autoclass:: MassFlowController(upstream, downstream, *, name=None, mdot=1.0, edge_attr=None)
    :inherited-members:
 
 Valve
 ^^^^^
-.. autoclass:: Valve
+.. autoclass:: Valve(upstream, downstream, *, name=None, K=1.0, edge_attr=None)
    :inherited-members:
 
 PressureController
 ^^^^^^^^^^^^^^^^^^
-.. autoclass:: PressureController
+.. autoclass:: PressureController(upstream, downstream, *, name=None, primary=None, K=1.0, edge_attr=None)
    :inherited-members:
 
 Preconditioners
@@ -146,7 +146,7 @@ Preconditioners
 
 AdaptivePreconditioner
 ^^^^^^^^^^^^^^^^^^^^^^
-.. autoclass:: AdaptivePreconditioner
+.. autoclass:: AdaptivePreconditioner()
 
 Drawing Reactor Networks
 ------------------------