from qiskit import QuantumCircuit
from qiskit.quantum_info import SparsePauliOp
from qiskit.transpiler.preset_passmanagers import generate_preset_pass_manager
from qiskit_ibm_runtime import QiskitRuntimeService, EstimatorV2 as Estimator
 
# Create a new circuit with two qubits
qc = QuantumCircuit(2)
 
# Add a Hadamard gate to qubit 0
qc.h(0)
 
# Perform a controlled-X gate on qubit 1, controlled by qubit 0
qc.cx(0, 1)
 
# Return a drawing of the circuit using MatPlotLib ("mpl"). This is the
# last line of the cell, so the drawing appears in the cell output.
# Remove the "mpl" argument to get a text drawing.
qc.draw("mpl")

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
Cell In[1], line 1
----> 1 from qiskit import QuantumCircuit
      2 from qiskit.quantum_info import SparsePauliOp
      3 from qiskit.transpiler.preset_passmanagers import generate_preset_pass_manager

File ~/.pyenv/versions/3.11.0/lib/python3.11/site-packages/qiskit/__init__.py:36
     34     _suppress_error = os.environ.get("QISKIT_SUPPRESS_1_0_IMPORT_ERROR", False) == "1"
     35     if not _suppress_error and _has_tools:
---> 36         raise ImportError(
     37             "Qiskit is installed in an invalid environment that has both Qiskit >=1.0"
     38             " and an earlier version."
     39             " You should create a new virtual environment, and ensure that you do not mix"
     40             " dependencies between Qiskit <1.0 and >=1.0."
     41             " Any packages that depend on 'qiskit-terra' are not compatible with Qiskit 1.0 and"
     42             " will need to be updated."
     43             " Qiskit unfortunately cannot enforce this requirement during environment resolution."
     44             " See https://qisk.it/packaging-1-0 for more detail."
     45         )
     47 import qiskit._accelerate
     50 # Globally define compiled submodules. The normal import mechanism will not find compiled submodules
     51 # in _accelerate because it relies on file paths, but PyO3 generates only one shared library file.
     52 # We manually define them on import so people can directly import qiskit._accelerate.* submodules
     53 # and not have to rely on attribute access.  No action needed for top-level extension packages.

ImportError: Qiskit is installed in an invalid environment that has both Qiskit >=1.0 and an earlier version. You should create a new virtual environment, and ensure that you do not mix dependencies between Qiskit <1.0 and >=1.0. Any packages that depend on 'qiskit-terra' are not compatible with Qiskit 1.0 and will need to be updated. Qiskit unfortunately cannot enforce this requirement during environment resolution. See https://qisk.it/packaging-1-0 for more detail.