Python SDK

Python software development kit (SDK) and Jupyter notebooks for working with OPENQASM and the IBM Quantum Experience (QE).

Related external projects:

• Python API
• OPENQASM

Organization

The scripts directory contains Jupyter notebooks showing how to use the Python API with OPENQASM.

Under development; There are Jupyter notebooks demonstrating components of the SDK in the scripts directory. There are also command line test scripts in the testscripts directory.

Under development; Ismael has refactored the parser on a branch of qx-sdk but not committed yet. For this reason, I am leaving the Qasm module as is for now, except to change it to accept OPENQASM. We want to reorganize the SDK so that is has a comfortable and intuitive interface for developers.

Here is the current organization. The qiskit_sdk directory is a Python module. It contains a Qasm module for parsing OPENQASM circuits, an unroll module for unrolling QASM to a circuit object, a circuit module for representing, transforming, and computeing properties of OPENQASM circuits as directed acyclic graphs, and a localize module for mapping all-to-all circuits to run on machines with fixed couplings.

Quantum circuits flow through the components as follows. OPENQASM source, as a file or string, is passed into a Qasm object, whose parse method produces an abstract syntax tree (AST) representation. The AST is passed to an Unroller that is attached to an UnrollerBackend. There is an unimplemented base class, a PrinterBackend for outputting text, and a CircuitBackend for constructing circuit objects. The circuit object represents an unrolled OPENQASM circuit as a directed acyclic graph (DAG). The circuit provides methods for working with circuits and outputting OPENQASM.

Setup Python Virtual Enviroment

Anaconda

To create a new Virtual Enviroment:

conda create -n QISKitenv python=3 pip

use it:

source activate QISKitenv

Install Dependencies

pip install -r requires.txt

Dependencies problems.

When you try to install the dependencies "pip install --upgrade IBMQuantumExperience", if you have the next error:

• Cannot remove entries from nonexistent file [PATH]/easy-install.pth

You can fix it using:

curl https://bootstrap.pypa.io/ez_setup.py -o - | python