Remove mention of being a fork. (#592)

README.rst

@@ -5,8 +5,9 @@
 
 |Tests Status| |Coverage|
 
-|Project Name| is a fork of `Aesara <https://github.com/aesara-devs/aesara>`__ -- a Python library that allows one to define, optimize, and
+|Project Name| is a Python library that allows one to define, optimize, and
 efficiently evaluate mathematical expressions involving multi-dimensional arrays.
+It provides the computational backend for `PyMC <https://github.com/pymc-devs/pymc>`__.
 
 Features
 ========
@@ -15,7 +16,8 @@ Features
 - Extensible graph framework suitable for rapid development of custom operators and symbolic optimizations
 - Implements an extensible graph transpilation framework that currently provides
   compilation via C, `JAX <https://github.com/google/jax>`__, and `Numba <https://github.com/numba/numba>`__
-- Based on one of the most widely-used Python tensor libraries: `Theano <https://github.com/Theano/Theano>`__
+- Contrary to PyTorch and TensorFlow, PyTensor maintains a static graph which can be modified in-place to
+  allow for advanced optimizations
 
 Getting started
 ===============

scripts/downstream_pr.sh

-#!/bin/bash
-
-if [ -z "$1" ]
-  then
-    echo "Usage: downstream_pr.sh <PR_number>"
-    echo "Port a specified PR from the Aesara repo to the PyTensor repo. Will create a new branch, adapt and apply the upstream PR, and create a new PR to PyTensor. Requires a remote aesara."
-    exit 1
-fi
-
-git am --abort
-git checkout main
-git branch -D downstream_$1
-git fetch aesara
-
-set -e
-git pull origin main
-git checkout -b downstream_$1
-
-echo "Downloading patch..."
-wget -O $1.patch https://patch-diff.githubusercontent.com/raw/aesara-devs/aesara/pull/$1.patch
-
-echo "Replacing aesara strings..."
-declare -a replace_strings=(
-    "s/aesara/pytensor/g"
-    "s/Aesara/PyTensor/g"
-)
-
-for replace in "${replace_strings[@]}"; do
-    sed -i -e "$replace" $1.patch
-done
-
-echo "Applying patch..."
-if git am -3 --reject $1.patch ; then
-    echo "Patch applied successfully..."
-else
-    echo "Patch failed. Find the .rej file and apply the changes manually. Then 'git add' all changed files, followed by 'git am --continue'. Then create a PR manually."
-    exit 1
-fi
-
-echo "Running pre-commit"
-pre-commit run --all
-
-git push origin downstream_$1
-# get the informative title
-title=$(curl https://api.github.com/repos/aesara-devs/aesara/pulls/$1 2>/dev/null | jq '.title')
-gh pr create --repo pymc-devs/pytensor --label "aesara downstream" --title "🔄 From Aesara: $1: $title" --body "Downstreaming https://github.com/aesara-devs/aesara/pull/$1. PR port done by downstream_pr.sh script."

scripts/upstream_pr.sh

-#!/bin/bash
-
-if [ -z "$1" ]
-  then
-    echo "Usage: upstream_pr.sh <PR_number>"
-    echo "Port a specified PR from the PyTensor repo to the Aesara repo. Will create a new branch, adapt and apply the upstream PR, and create a new PR to PyTensor."
-    exit 1
-fi
-
-set -e
-
-git checkout main
-git pull origin main
-git checkout -b downstream_$1
-
-echo "Downloading patch..."
-wget -O $1.patch https://patch-diff.githubusercontent.com/raw/pymc-devs/pytensor/pull/$1.patch
-
-echo "Replacing aesara strings..."
-declare -a replace_strings=(
-    "s/pytensor/aesara/g"
-    "s/PyTensor/Aesara/g"
-)
-
-for replace in "${replace_strings[@]}"; do
-    sed -i -e "$replace" $1.patch
-done
-
-echo "Applying patch..."
-if git am -3 --reject $1.patch ; then
-    echo "Patch applied successfully..."
-else
-    echo "Patch failed. Find the .rej file and apply the changes manually. Then 'git add' all changed files, followed by 'git am --continue'. Then create a PR manually."
-    exit 1
-fi
-
-echo "Running pre-commit"
-pre-commit run --all
-
-git push origin downstream_$1
-
-title=$(curl https://api.github.com/repos/pymc-devs/pytensor/pulls/$1 2>/dev/null | jq '.title')
-gh pr create --repo aesara-devs/aesara --title "Upstreaming PyTensor PR $1: $title" --body "Upstreaming https://github.com/pymc-devs/pytensor/pull/$1. PR port done by upstream_pr.sh script."