From b9a59d60e7d0a21ba14a9345a726433f418aa97f Mon Sep 17 00:00:00 2001
From: Rebecca Dimock <beckyd@us.ibm.com>
Date: Wed, 11 Dec 2024 15:22:34 -0600
Subject: [PATCH] need different text when there's no code

---
 qiskit/circuit/library/arithmetic/piecewise_chebyshev.py | 1 +
 qiskit/circuit/library/basis_change/qft.py               | 3 +++
 qiskit/circuit/library/boolean_logic/inner_product.py    | 2 ++
 qiskit/circuit/library/phase_estimation.py               | 2 +-
 qiskit/circuit/library/quantum_volume.py                 | 6 +++---
 5 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/qiskit/circuit/library/arithmetic/piecewise_chebyshev.py b/qiskit/circuit/library/arithmetic/piecewise_chebyshev.py
index cc34d3631f59..025e4bb46a7b 100644
--- a/qiskit/circuit/library/arithmetic/piecewise_chebyshev.py
+++ b/qiskit/circuit/library/arithmetic/piecewise_chebyshev.py
@@ -37,6 +37,7 @@ class PiecewiseChebyshev(BlueprintCircuit):
     Examples:
 
         .. plot::
+           :alt: [Circuit diagram output by the previous code.]
            :include-source:
 
             import numpy as np
diff --git a/qiskit/circuit/library/basis_change/qft.py b/qiskit/circuit/library/basis_change/qft.py
index cb14977b4463..512082ae1023 100644
--- a/qiskit/circuit/library/basis_change/qft.py
+++ b/qiskit/circuit/library/basis_change/qft.py
@@ -38,6 +38,7 @@ class QFT(BlueprintCircuit):
     For 4 qubits, the circuit that implements this transformation is:
 
     .. plot::
+       :alt: [Diagram illustrating the previously described circuit.]
 
        from qiskit.circuit.library import QFT
        from qiskit.visualization.library import _generate_circuit_library_visualization
@@ -48,6 +49,7 @@ class QFT(BlueprintCircuit):
     The respective circuit diagram is:
 
     .. plot::
+       :alt: [Diagram illustrating the previously described circuit.]
 
        from qiskit.circuit.library import QFT
        from qiskit.visualization.library import _generate_circuit_library_visualization
@@ -64,6 +66,7 @@ class QFT(BlueprintCircuit):
     on 5 qubits with approximation degree 2 yields (the barriers are dropped in this example):
 
     .. plot::
+       :alt: [Diagram illustrating the previously described circuit.]
 
        from qiskit.circuit.library import QFT
        from qiskit.visualization.library import _generate_circuit_library_visualization
diff --git a/qiskit/circuit/library/boolean_logic/inner_product.py b/qiskit/circuit/library/boolean_logic/inner_product.py
index 84b3807fb56c..b4ee9a8dcdc8 100644
--- a/qiskit/circuit/library/boolean_logic/inner_product.py
+++ b/qiskit/circuit/library/boolean_logic/inner_product.py
@@ -55,6 +55,7 @@ class InnerProduct(QuantumCircuit):
 
     Reference Circuit:
         .. plot::
+           :alt: [Diagram illustrating the previously described circuit.]
 
            from qiskit.circuit.library import InnerProduct
            from qiskit.visualization.library import _generate_circuit_library_visualization
@@ -121,6 +122,7 @@ class InnerProductGate(Gate):
 
     Reference Circuit:
         .. plot::
+           :alt: [Diagram illustrating the previously described circuit.]
 
            from qiskit.circuit import QuantumCircuit
            from qiskit.circuit.library import InnerProductGate
diff --git a/qiskit/circuit/library/phase_estimation.py b/qiskit/circuit/library/phase_estimation.py
index cdfc09d0af9a..705467414603 100644
--- a/qiskit/circuit/library/phase_estimation.py
+++ b/qiskit/circuit/library/phase_estimation.py
@@ -76,7 +76,7 @@ def __init__(
 
         Reference Circuit:
             .. plot::
-               :alt: [Circuit diagram output by the previous code.]
+               :alt: [Diagram illustrating the previously described circuit.]
 
                from qiskit.circuit import QuantumCircuit
                from qiskit.circuit.library import PhaseEstimation
diff --git a/qiskit/circuit/library/quantum_volume.py b/qiskit/circuit/library/quantum_volume.py
index acec94b66f7e..932a04b5c923 100644
--- a/qiskit/circuit/library/quantum_volume.py
+++ b/qiskit/circuit/library/quantum_volume.py
@@ -35,7 +35,7 @@ class QuantumVolume(QuantumCircuit):
     **Reference Circuit:**
 
     .. plot::
-       :alt: [Circuit diagram output by the previous code.]
+       :alt: [Diagram illustrating the previously described circuit.]
 
        from qiskit.circuit.library import QuantumVolume
        circuit = QuantumVolume(5, 6, seed=10)
@@ -44,7 +44,7 @@ class QuantumVolume(QuantumCircuit):
     **Expanded Circuit:**
 
     .. plot::
-       :alt: [Circuit diagram output by the previous code.]
+       :alt: [Diagram illustrating the previously described circuit.]
 
        from qiskit.circuit.library import QuantumVolume
        from qiskit.visualization.library import _generate_circuit_library_visualization
@@ -152,7 +152,7 @@ def quantum_volume(
     **Reference Circuit:**
 
     .. plot::
-       :alt: [Circuit diagram output by the previous code.]
+       :alt: [Diagram illustrating the previously described circuit.]
 
        from qiskit.circuit.library import quantum_volume
        circuit = quantum_volume(5, 6, seed=10)