qsv now links against Python 3.11 for the py command (#576)

* `python`: we now link against python 3.11 - the latest stable python

* change all GH workflows to use python 3.11

* add empty DLLs directory to suppress python 3.11 warning

as per python/cpython#98790

.github/workflows/publish-nightly.yml

@@ -78,7 +78,7 @@ jobs:
         ref: ${{ needs.analyze-tags.outputs.previous-tag }}
     - uses: actions/[email protected]
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: build prep for x86_64-unknown-linux-musl
       if: ${{ matrix.job.musl-prep }}
       run: |

.github/workflows/publish.yml

@@ -149,7 +149,7 @@ jobs:
         ref: ${{ needs.analyze-tags.outputs.previous-tag }}
     - uses: actions/[email protected]
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: build prep for aarch64-apple-darwin
       if: ${{ matrix.job.build-prep }}
       run: |

.github/workflows/rust-beta.yml

@@ -17,7 +17,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/[email protected]
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Update Rust Beta
       run: |
         rustup update beta

.github/workflows/rust-macos.yml

@@ -18,7 +18,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/[email protected]
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Update Rust
       run: rustup update
     - name: Setup Rust-cache

.github/workflows/rust-nightly-bleeding-edge.yml

@@ -17,7 +17,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/[email protected]
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Install and Run Redis
       run: |
         sudo apt-get install redis-server

.github/workflows/rust-windows.yml

@@ -18,13 +18,16 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/[email protected]
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Update Rust
       run: rustup update
     - name: Setup Rust-cache
       uses: Swatinem/rust-cache@v1
       with:
         key: qsv-cache
+    - name: make empty DLLs directory to prevent spurious python warning
+      run: |
+        mkdir DLLs   
     - name: Run tests
       run: cargo test --verbose --locked --features=apply,fetch,foreach,generate,lua,python,full
     - name: Run luajit tests separately as its mutually exclusive with lua feature

.github/workflows/rust.yml

@@ -18,7 +18,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/[email protected]
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Install and Run Redis
       run: |
         sudo apt-get install redis-server

.github/workflows/test-publish.yml

@@ -131,7 +131,7 @@ jobs:
         ref: 'master'
     - uses: actions/[email protected]
       with:
-        python-version: '3.10.7'
+        python-version: '3.11'
     - name: build prep for aarch64-apple-darwin
       if: ${{ matrix.job.build-prep }}
       run: |

README.md

@@ -55,7 +55,7 @@ See [FAQ](https://github.com/jqnatividad/qsv/discussions/categories/faq) for mor
 | [luajit](/src/cmd/luajit.rs#L2)[^1] | Execute a [LuaJIT](https://luajit.org/luajit.html) 2.0 (a Just-In-Time compiler for Lua 5.1) script over CSV lines to transform, aggregate or filter them. [LuaJIT is even faster still than Lua](https://luajit.org/performance_x86.html). |
 | [partition](/src/cmd/partition.rs#L2) | Partition a CSV based on a column value. |
 | [pseudo](/src/cmd/pseudo.rs#L2) | [Pseudonymise](https://en.wikipedia.org/wiki/Pseudonymization) the value of the given column by replacing them with an incremental identifier.  |
-| [py](/src/cmd/python.rs#L2)[^1] | Evaluate a Python expression over CSV lines to transform or filter them. Python's [f-strings](https://www.freecodecamp.org/news/python-f-strings-tutorial-how-to-use-f-strings-for-string-formatting/) is particularly useful for extended formatting, [with the ability to evaluate Python expressions as well](https://github.com/jqnatividad/qsv/blob/4cd00dca88addf0d287247fa27d40563b6d46985/src/cmd/python.rs#L23-L31).<br />Consider using the `lua`/`luajit` commands instead if you're having Python version issues ([Python 3.6 and up supported, with Python 3.10 required on prebuilt qsv](#python)) as it's much faster, embedded, can do aggregations & has no external dependencies. |
+| [py](/src/cmd/python.rs#L2)[^1] | Evaluate a Python expression over CSV lines to transform or filter them. Python's [f-strings](https://www.freecodecamp.org/news/python-f-strings-tutorial-how-to-use-f-strings-for-string-formatting/) is particularly useful for extended formatting, [with the ability to evaluate Python expressions as well](https://github.com/jqnatividad/qsv/blob/4cd00dca88addf0d287247fa27d40563b6d46985/src/cmd/python.rs#L23-L31).<br />Consider using the `lua`/`luajit` commands instead if you're having Python version issues ([Python 3.6 and up supported, with Python 3.11 required on prebuilt qsv](#python)) as it's much faster, embedded, can do aggregations & has no external dependencies. |
 | [rename](/src/cmd/rename.rs#L2) |  Rename the columns of a CSV efficiently.  |
 | [replace](/src/cmd/replace.rs#L2) | Replace CSV data using a regex.  |
 | [reverse](/src/cmd/reverse.rs#L2)[^3] | Reverse order of rows in a CSV. Unlike the `sort --reverse` command, it preserves the order of rows with the same key.  |
@@ -236,7 +236,7 @@ Note that this will happen as soon as the qsv binary is invoked, even if you're
 If you don't need to run the `py` command, simply use `qsvnp` ("np" stands for "no python"), `qsvlite`, or `qsvdp`.
 
 If you need the `py` command, the [prebuilt qsv binary](https://github.com/jqnatividad/qsv/releases/latest) is compiled, as a policy,
-using the current stable Python minor version (currently Python 3.10) at the time of release.
+using the current stable Python minor version (currently Python 3.11) at the time of release.
 
 If you require a different Python version (Python 3.6 and up are supported), you'll need to install/compile from source, making sure you have
 the development libraries for the desired Python version installed when doing so.   

src/cmd/python.rs

@@ -66,8 +66,8 @@ Some usage examples:
   2,b2,b3,b4,7d594b33f82bdcbc1cfa6f924a84c4cd
   3,c2,c3,c4,6eabbfdbfd9ab6ae7737fb2b82f6a1af
 
-  NOTE: The prebuilt qsv binaries are linked against Python 3.10 and will require access
-  to the Python 3.10 shared libraries (libpython* on Linux/macOS, python*.dll on Windows)
+  NOTE: The prebuilt qsv binaries are linked against Python 3.11 and will require access
+  to the Python 3.11 shared libraries (libpython* on Linux/macOS, python*.dll on Windows)
   during runtime for the py command to run.
   
   Note that qsv with the `python` feature enabled will panic on startup even if you're not