I'm currently following the "Introduction To Quantum Programming" course of qiskit.

At the beginning of "Visualizing entanglement" chapter : https://learn.qiskit.org/course/introduction/visualizing-entanglement

We have to run this line: from hello_qiskit import run_puzzle

This raises this error :

ModuleNotFoundError: No module named 'hello_qiskit'

I cannot find the hello_qiskit module in my anaconda environnement And if I try to install it with

pip install hello_qiskit I have this error:

ERROR: Could not find a version that satisfies the requirement hello_qiskit (from versions: none) ERROR: No matching distribution found for hello_qiskit

How can I install this module or is there another way to use the run_puzzle function ?

  • $\begingroup$ Hello, could you put the link to the course you're talking about please? $\endgroup$
    – Lena
    Commented Mar 3, 2022 at 16:16
  • 1
    $\begingroup$ Hello, i just add it, thank you $\endgroup$
    – fyasla
    Commented Mar 3, 2022 at 16:19
  • $\begingroup$ Did you follow the instructions to set up the environment? learn.qiskit.org/course/ch-prerequisites/… $\endgroup$
    – Lena
    Commented Mar 3, 2022 at 16:24
  • $\begingroup$ Yes I did, and everything I followed in the course until this stage worked perfectly $\endgroup$
    – fyasla
    Commented Mar 3, 2022 at 17:14

1 Answer 1


hello_qiskit is just a python file that lives in the Qiskit Textbook Jupyter Notebook system that is used as a short-cut/helper to interact with qiskit_textbook.games.hello_quantum. In Visualizing Entanglement, if you add

import hello_qiskit

to the first cell, you will find a file /home/jovyan/hello_qiskit.py that contains the run_puzzle method, defined as follows:

from qiskit_textbook.games import hello_quantum

def run_puzzle(j):
    puzzle = hello_quantum.run_game(exercises[j]['initialize'],
    return puzzle

This method references a list exercises of dictionaries defining arguments that will be passed to the run_game method. When you pass an int to the run_puzzle method, you are simply indexing the exercises list defined in hello_qiskit.py. For example, run_puzzle(0) accesses exercises[0], which is defined as

    'initialize': [],
    'success_condition': {},
    'allowed_gates': {'0': {'x': 3}, '1': {}, 'both': {}},
    'vi': [[1], True, False],
    'mode': 'line',
    'qubit_names': {'0':'q[0]', '1':'q[1]'}

To see how the run_game method is used, see Hello Qiskit Game.


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