disable=invalid-name at line level instead of file level (Qiskit#3242)

* qiskit/qasm/node/customunitary.py

* qiskit/qasm/node/opaque.py

* qiskit/visualization/counts_visualization.py

* qiskit/visualization/pass_manager_visualization.py

* qiskit/visualization/gate_map.py

* qiskit/extensions/

* qiskit/qasm/node/qreg.py

* qiskit/quantum_info/states/measures.py

* qiskit/qasm/node/indexedid.py

* qiskit/qasm/node/creg.py

* qiskit/tools/jupyter/copyright.py

* qiskit/tools/jupyter/version_table.py

* qiskit/quantum_info/random/utils.py

* lint

qiskit/extensions/quantum_initializer/diag.py

@@ -15,7 +15,6 @@
 # The structure of the code is based on Emanuel Malvetti's semester thesis at ETH in 2018,
 # which was supervised by Raban Iten and Prof. Renato Renner.
 
-# pylint: disable=invalid-name
 # pylint: disable=missing-param-doc
 # pylint: disable=missing-type-doc
 

qiskit/extensions/quantum_initializer/ucrot.py

@@ -15,8 +15,6 @@
 # The structure of the code is based on Emanuel Malvetti's semester thesis at ETH in 2018,
 # which was supervised by Raban Iten and Prof. Renato Renner.
 
-# pylint: disable=invalid-name
-
 """
 (Abstract) base class for uniformly controlled (also called multiplexed) single-qubit rotations R_t.
 This class provides a basis for the decomposition of uniformly controlled R_x,R_y and R_z gates
@@ -55,9 +53,9 @@ def __init__(self, angle_list, rot_axis):
         if not isinstance(angle_list, list):
             raise QiskitError("The angles are not provided in a list.")
         # Check if the angles in angle_list are real numbers
-        for a in angle_list:
+        for angle in angle_list:
             try:
-                float(a)
+                float(angle)
             except TypeError:
                 raise QiskitError(
                     "An angle cannot be converted to type float (real angles are expected).")
@@ -165,5 +163,5 @@ def _dec_uc_rotations(angles, start_index, end_index, reversedDec):
 
 # Calculate the new rotation angles according to Shende's decomposition
 
-def _update_angles(a1, a2):
-    return (a1 + a2) / 2.0, (a1 - a2) / 2.0
+def _update_angles(angle1, angle2):
+    return (angle1 + angle2) / 2.0, (angle1 - angle2) / 2.0

qiskit/extensions/standard/ch.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 controlled-H gate.
 """
@@ -76,7 +74,7 @@ def to_matrix(self):
                          [0, 1/np.sqrt(2), 0, -1/np.sqrt(2)]], dtype=complex)
 
 
-def ch(self, ctl, tgt):
+def ch(self, ctl, tgt):  # pylint: disable=invalid-name
     """Apply CH from ctl to tgt."""
     return self.append(CHGate(), [ctl, tgt], [])
 

qiskit/extensions/standard/cx.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 controlled-NOT gate.
 """
@@ -43,7 +41,7 @@ def to_matrix(self):
                             [0, 1, 0, 0]], dtype=complex)
 
 
-def cx(self, ctl, tgt):
+def cx(self, ctl, tgt):  # pylint: disable=invalid-name
     """Apply CX from ctl to tgt."""
     return self.append(CnotGate(), [ctl, tgt], [])
 

qiskit/extensions/standard/cy.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 controlled-Y gate.
 """
@@ -52,7 +50,7 @@ def inverse(self):
         return CyGate()  # self-inverse
 
 
-def cy(self, ctl, tgt):
+def cy(self, ctl, tgt):  # pylint: disable=invalid-name
     """Apply CY to circuit."""
     return self.append(CyGate(), [ctl, tgt], [])
 

qiskit/extensions/standard/cz.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 controlled-Phase gate.
 """
@@ -60,7 +58,7 @@ def to_matrix(self):
                             [0, 0, 0, -1]], dtype=complex)
 
 
-def cz(self, ctl, tgt):
+def cz(self, ctl, tgt):  # pylint: disable=invalid-name
     """Apply CZ to circuit."""
     return self.append(CzGate(), [ctl, tgt], [])
 

qiskit/extensions/standard/h.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 Hadamard gate.
 """
@@ -56,7 +54,7 @@ def to_matrix(self):
                             [1, -1]], dtype=complex) / numpy.sqrt(2)
 
 
-def h(self, q):
+def h(self, q):  # pylint: disable=invalid-name
     """Apply H to q."""
     return self.append(HGate(), [q], [])
 

qiskit/extensions/standard/rx.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 Rotation around the x-axis.
 """
@@ -61,7 +59,7 @@ def to_matrix(self):
                             [-1j * sin, cos]], dtype=complex)
 
 
-def rx(self, theta, q):
+def rx(self, theta, q):  # pylint: disable=invalid-name
     """Apply Rx to q."""
     return self.append(RXGate(theta), [q], [])
 

qiskit/extensions/standard/ry.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 Rotation around the y-axis.
 """
@@ -60,7 +58,7 @@ def to_matrix(self):
                             [sin, cos]], dtype=complex)
 
 
-def ry(self, theta, q):
+def ry(self, theta, q):  # pylint: disable=invalid-name
     """Apply Ry to q."""
     return self.append(RYGate(theta), [q], [])
 

qiskit/extensions/standard/rz.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 Rotation around the z-axis.
 """
@@ -51,7 +49,7 @@ def inverse(self):
         return RZGate(-self.params[0])
 
 
-def rz(self, phi, q):
+def rz(self, phi, q):  # pylint: disable=invalid-name
     """Apply Rz to q."""
     return self.append(RZGate(phi), [q], [])
 

qiskit/extensions/standard/s.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 S=diag(1,i) Clifford phase gate or its inverse.
 """
@@ -39,7 +37,7 @@ def _define(self):
         definition = []
         q = QuantumRegister(1, "q")
         rule = [
-            (U1Gate(pi/2), [q[0]], [])
+            (U1Gate(pi / 2), [q[0]], [])
         ]
         for inst in rule:
             definition.append(inst)
@@ -69,7 +67,7 @@ def _define(self):
         definition = []
         q = QuantumRegister(1, "q")
         rule = [
-            (U1Gate(-pi/2), [q[0]], [])
+            (U1Gate(-pi / 2), [q[0]], [])
         ]
         for inst in rule:
             definition.append(inst)
@@ -85,7 +83,7 @@ def to_matrix(self):
                             [0, -1j]], dtype=complex)
 
 
-def s(self, q):
+def s(self, q):  # pylint: disable=invalid-name
     """Apply S to q."""
     return self.append(SGate(), [q], [])
 

qiskit/extensions/standard/t.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 T=sqrt(S) phase gate or its inverse.
 """
@@ -85,7 +83,7 @@ def to_matrix(self):
                             [0, (1-1j) / numpy.sqrt(2)]], dtype=complex)
 
 
-def t(self, q):
+def t(self, q):  # pylint: disable=invalid-name
     """Apply T to q."""
     return self.append(TGate(), [q], [])
 

qiskit/extensions/standard/u0.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 Single qubit gate cycle idle.
 """
@@ -54,7 +52,7 @@ def to_matrix(self):
                             [0, 1]], dtype=complex)
 
 
-def u0(self, m, q):
+def u0(self, m, q):  # pylint: disable=invalid-name
     """Apply u0 with length m to q."""
     return self.append(U0Gate(m), [q], [])
 

qiskit/extensions/standard/u1.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """
 Diagonal single qubit gate.
 """
@@ -52,7 +50,7 @@ def to_matrix(self):
         return numpy.array([[1, 0], [0, numpy.exp(1j * lam)]], dtype=complex)
 
 
-def u1(self, theta, q):
+def u1(self, theta, q):  # pylint: disable=invalid-name
     """Apply u1 with angle theta to q."""
     return self.append(U1Gate(theta), [q], [])
 

qiskit/extensions/standard/u2.py

@@ -12,7 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
 """
 One-pulse single-qubit gate.
 """
@@ -59,7 +58,7 @@ def to_matrix(self):
                            dtype=complex)
 
 
-def u2(self, phi, lam, q):
+def u2(self, phi, lam, q):  # pylint: disable=invalid-name
     """Apply u2 to q."""
     return self.append(U2Gate(phi, lam), [q], [])
 

qiskit/extensions/standard/u3.py

@@ -12,10 +12,10 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
 """
 Two-pulse single-qubit gate.
 """
+
 import numpy
 from qiskit.circuit import Gate
 from qiskit.circuit import QuantumCircuit
@@ -51,7 +51,7 @@ def to_matrix(self):
             dtype=complex)
 
 
-def u3(self, theta, phi, lam, q):
+def u3(self, theta, phi, lam, q):  # pylint: disable=invalid-name
     """Apply u3 to q."""
     return self.append(U3Gate(theta, phi, lam), [q], [])
 

qiskit/qasm/node/creg.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """Node for an OPENQASM creg statement."""
 
 from .node import Node
@@ -29,7 +27,7 @@ def __init__(self, children):
         """Create the creg node."""
         super().__init__('creg', children, None)
         # This is the indexed id, the full "id[n]" object
-        self.id = children[0]
+        self.id = children[0]  # pylint: disable=invalid-name
         # Name of the creg
         self.name = self.id.name
         # Source line number

qiskit/qasm/node/customunitary.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """Node for an OPENQASM custom gate statement."""
 
 from .node import Node
@@ -36,7 +34,7 @@ class CustomUnitary(Node):
     def __init__(self, children):
         """Create the custom gate node."""
         super().__init__('custom_unitary', children, None)
-        self.id = children[0]
+        self.id = children[0]  # pylint: disable=invalid-name
         self.name = self.id.name
         if len(children) == 3:
             self.arguments = children[1]

qiskit/qasm/node/gate.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """Node for an OPENQASM gate definition."""
 
 from .node import Node
@@ -32,7 +30,7 @@ class Gate(Node):
     def __init__(self, children):
         """Create the gate node."""
         super().__init__('gate', children, None)
-        self.id = children[0]
+        self.id = children[0]  # pylint: disable=invalid-name
         # The next three fields are required by the symbtab
         self.name = self.id.name
         self.line = self.id.line

qiskit/qasm/node/indexedid.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """Node for an OPENQASM indexed id."""
 
 from .node import Node
@@ -29,7 +27,7 @@ class IndexedId(Node):
     def __init__(self, children):
         """Create the indexed id node."""
         super().__init__('indexed_id', children, None)
-        self.id = children[0]
+        self.id = children[0]  # pylint: disable=invalid-name
         self.name = self.id.name
         self.line = self.id.line
         self.file = self.id.file

qiskit/qasm/node/opaque.py

@@ -12,8 +12,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-# pylint: disable=invalid-name
-
 """Node for an OPENQASM opaque gate declaration."""
 
 from .node import Node
@@ -31,7 +29,7 @@ class Opaque(Node):
     def __init__(self, children):
         """Create the opaque gate node."""
         super().__init__('opaque', children, None)
-        self.id = children[0]
+        self.id = children[0]  # pylint: disable=invalid-name
         # The next three fields are required by the symbtab
         self.name = self.id.name
         self.line = self.id.line