Backport tutorials into stable 0.23 branch

CODE_OF_CONDUCT.md

@@ -1,113 +1,9 @@
-# Code of Conduct
-
-## Our Pledge
-
-The Qiskit Community is dedicated to our values of treating every individual
-with respect and dignity. In the interest of fostering an open and welcoming
-environment, all participants, including attendees, speakers, sponsors,
-volunteers, online contributors, and IBM employees are expected to show
-courtesy for each other and our community by creating a harassment-free
-experience for everyone, regardless of age, personal appearance, disability,
-ethnicity, gender identity and expression, body size, level of experience,
-nationality, race, religion, caste, or sexual identity and orientation.
-Expected behavior applies to both online and offline engagement within the
-Qiskit Community.
-
-## Scope
-
-The purpose of this Code of Conduct is to define and enforce the values and
-conduct of contributors and participants in the Qiskit open source community.
-The Code of Conduct applies both within project spaces and in public spaces
-when an individual is engaging with the Qiskit open source community. Examples
-include attending a Qiskit event, contributing to online projects, commentary
-on Slack, or representing a project or community, including using an official
-project e-mail address, posting via an official social media account, or
-acting as an appointed representative at an online or offline event.
-Representation of a project may be further defined and clarified by project
-maintainers.
-
-## Our Standards
-
-Examples of behavior that contributes to creating a positive environment
-include:
+<!-- Copyright Contributors to the Qiskit project. -->
 
-- Using welcoming and inclusive language
-- Being respectful of differing viewpoints, experiences, and cultures
-- Gracefully accepting constructive criticism
-- Focusing on what is best for the community
-- Showing empathy towards other community members
-- Being mindful of your surroundings and your fellow participants and listening
-  to others
-- Valuing the contributions of all participants
-- Engaging in collaboration before conflict
-- Pointing out unintentionally racist, sexist, casteist, or biased comments and
-  jokes made by community members when they happen
-
-Examples of unacceptable behavior by participants, even when presented as
-"ironic" or "joking," include:
-
-- The use of sexualized language or imagery and unwelcome physical contact,
-  sexual attention, or advances
-- Trolling, insulting/derogatory comments, and personal or political attacks
-- Public or private harassment, including offensive or degrading language
-- Publishing others' private information, such as a physical or electronic
-  address, without explicit permission. This includes any sort of "outing" of
-  any aspect of someone's identity without their consent.
-- "Doxxing," Publishing screenshots or quotes, especially from identity slack
-  channels, private chat, or public events, without all quoted users' explicit
-  consent.
-- Other conduct which could reasonably be considered inappropriate in a
-  professional setting
-
-## Responsibilities & Enforcement
-
-The entire Qiskit community is responsible for upholding the terms of the Code
-of Conduct in Qiskit Community events and spaces and reporting violations if
-they see them. The internal Qiskit team at IBM is ultimately responsible for
-clarifying the standards of acceptable behavior and enforcement, and is expected
-to take appropriate and fair corrective action in response to any instances of
-unacceptable behavior.
-
-If a participant or contributor engages in negative or harmful behavior, IBM
-will take any action they deem appropriate, including but not limited to
-issuing warnings, expulsion from an event with no refund, deleting comments,
-permanent banning from future events or online community, or calling local law
-enforcement. IBM has the right and responsibility to remove, edit, or reject
-comments, commits, code, wiki edits, issues, and other contributions that are
-not aligned to this Code of Conduct, or to temporarily or permanently ban any
-contributor or participant for other behaviors that they deem inappropriate,
-threatening, offensive, or harmful.
-
-If you see a Code of Conduct violation:
+# Code of Conduct
+All members of this project agree to adhere to the Qiskit Code of Conduct listed at [https://github.com/Qiskit/qiskit/blob/master/CODE_OF_CONDUCT.md](https://github.com/Qiskit/qiskit/blob/master/CODE_OF_CONDUCT.md)
 
-1. If you feel comfortable, let the person know that what they did is not
-   appropriate and ask them to stop and/or edit or delete their message(s) or
-   comment(s).
-2. If the person does not immediately stop the behavior or correct the issue,
-   or if you're uncomfortable speaking up, flag a moderator and, if appropriate,
-   fill out the anonymous
-   [Code of Conduct violation form](https://airtable.com/shrl5mEF4Eun1aIDm).
-3. The Qiskit Community will open an investigation upon receiving your form
-   entry. When reporting, please include any relevant details, links,
-   screenshots, context, or other information that may be used to better
-   understand and resolve the situation.
-4. If the code of conduct violation occurs at an event and requires immediate
-   response or contains a concern about an individual attending an upcoming
-   event, contact the event's on-call Code of Conduct point of contact listed
-   in the event specific code of conduct document. If you don't feel comfortable
-   speaking to the point of contact in person, fill out a Code of Conduct
-   violation form entry and include the details of the event so that the Code of
-   Conduct enforcement board can contact the event's on-call Code of Conduct
-   point of contact.
-5. If an IBM employee witnesses a Code of Conduct violation at any time, such as
-   at events, in a Slack channel, or open source forums, it is their
-   responsibility to file a Code of Conduct violation report.
+----
 
-This Code of Conduct does not supersede existing IBM corporate policies, such as
-the IBM Business Conduct Guidelines and IBM Business Partner Code of Conduct.
-IBM employees must follow IBM's Business Conduct Guidelines. IBM's business
-partners must follow the IBM Business Partner Code of Conduct. IBM employees
-concerned with a fellow IBMer's behavior should follow IBM's own internal HR
-reporting protocols, which include engaging the offending IBMer's manager and
-involving IBM Concerns and Appeals. IBM employees concerned with an IBM
-business partner's behavior should notify tellibm@us.ibm.com.
+License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/),
+Copyright Contributors to Qiskit.

azure-pipelines.yml

@@ -36,10 +36,10 @@ steps:
     python -m pip install --upgrade pip setuptools wheel virtualenv
     virtualenv /tmp/docs_build
     source /tmp/docs_build/bin/activate
-    pip install -U qiskit jupyter sphinx nbsphinx sphinx_rtd_theme
-    pip install 'matplotlib<3.3'
-    pip install -U qiskit[visualization] cvxpy
-    pip install pyscf
+    pip install -c constraints.txt -U qiskit jupyter sphinx nbsphinx sphinx_rtd_theme
+    pip install -c constraints.txt 'matplotlib<3.3'
+    pip install -c constraints.txt -U qiskit[visualization] cvxpy
+    pip install -c constraints.txt pyscf
     sudo apt-get install -y pandoc graphviz
   displayName: 'Install dependencies'
 - bash: |

conf.py

@@ -73,7 +73,8 @@
 exclude_patterns = ['*.ipynb', '_build', 'legacy_tutorials',
                     '**.ipynb_checkpoints']
 
-nbsphinx_timeout = 180
+cell_timeout = int(os.getenv('QISKIT_CELL_TIMEOUT', 180))
+nbsphinx_timeout = cell_timeout
 nbsphinx_execute = 'always'
 nbsphinx_execute_arguments = [
     "--InlineBackend.figure_formats={'png', 'pdf'}",

constraints.txt

@@ -0,0 +1,2 @@
+docplex==2.15.194
+cvxpy<1.1.8

index.rst

@@ -8,12 +8,14 @@ Qiskit Tutorials
 
   Circuits <tutorials/circuits/index.rst>
   Advanced Circuits <tutorials/circuits_advanced/index.rst>
-  Pulse <tutorials/pulse/index.rst>
   High-Performance Simulators <tutorials/simulators/index.rst>
   Quantum System Error Analysis <tutorials/noise/index.rst>
+  Algorithms <tutorials/algorithms/index.rst>
+  Operators <tutorials/operators/index.rst>
   Optimization <tutorials/optimization/index.rst>
   Finance <tutorials/finance/index.rst>
   Chemistry <tutorials/chemistry/index.rst>
+  Machine Learning <tutorials/machine_learning/index.rst>
 
 
 .. Hiding - Indices and tables