Merge #3200

3200: RFC: remove copyright headers from source files r=davidhewitt a=davidhewitt

As part of our relicensing effort - I've observed that over time we haven't applied COPYRIGHT headers consistently to source files.

I've seen different organisations take different approaches to this. I note that for [`rust-lang/rust`, headers only exist where code has been moved inside the Rust repo without relicensing](https://github.com/search?q=repo%3Arust-lang%2Frust+copyright+language%3ARust&type=code&l=Rust).

For PyO3, I suggest we follow this and remove COPYRIGHT headers from source. We may wish to consider attributing to `rust-cpython` as the original project from which PyO3 was forked, possibly in the License section of the readme?

Co-authored-by: David Hewitt <1939362+davidhewitt@users.noreply.github.com>

pyo3-macros-backend/src/lib.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 //! This crate contains the implementation of the proc macro attributes
 
 #![warn(elided_lifetimes_in_paths, unused_lifetimes)]

pyo3-macros-backend/src/method.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use crate::attributes::{TextSignatureAttribute, TextSignatureAttributeValue};
 use crate::deprecations::{Deprecation, Deprecations};
 use crate::params::impl_arg_params;

pyo3-macros-backend/src/module.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 //! Code generation for the function that initializes a python module and adds classes and function.
 
 use crate::{

pyo3-macros-backend/src/params.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use crate::{
     method::{FnArg, FnSpec},
     pyfunction::FunctionSignature,

pyo3-macros-backend/src/pyclass.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use std::borrow::Cow;
 
 use crate::attributes::{

pyo3-macros-backend/src/pyfunction.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use crate::{
     attributes::{
         self, get_pyo3_options, take_attributes, take_pyo3_options, CrateAttribute,

pyo3-macros-backend/src/pyimpl.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use std::collections::HashSet;
 
 use crate::{

pyo3-macros-backend/src/pymethod.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use std::borrow::Cow;
 
 use crate::attributes::NameAttribute;

pyo3-macros-backend/src/utils.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 use proc_macro2::{Span, TokenStream};
 use quote::ToTokens;
 use syn::{punctuated::Punctuated, spanned::Spanned, Token};

pyo3-macros/src/lib.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 //! This crate declares only the proc macro attributes, as a crate defining proc macro attributes
 //! must not contain any other public items.
 

src/callback.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 //! Utilities for a Python callable object that invokes a Rust function.
 
 use crate::err::{PyErr, PyResult};

src/conversion.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 //! Defines conversions between Rust and Python types.
 use crate::err::{self, PyDowncastError, PyResult};
 #[cfg(feature = "experimental-inspect")]

src/conversions/num_bigint.rs

@@ -1,7 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-// based on Daniel Grunwald's https://github.com/dgrunwald/rust-cpython
-
 #![cfg(feature = "num-bigint")]
 //!  Conversions to and from [num-bigint](https://docs.rs/num-bigint)’s [`BigInt`] and [`BigUint`] types.
 //!

src/derive_utils.rs

@@ -1,7 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-// based on Daniel Grunwald's https://github.com/dgrunwald/rust-cpython
-
 //! Functionality for the code generated by the derive backend
 
 use crate::{types::PyModule, Python};

src/err/mod.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use crate::panic::PanicException;
 use crate::type_object::PyTypeInfo;
 use crate::types::{PyTraceback, PyType};

src/exceptions.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 //! Exception and warning types defined by Python.
 //!
 //! The structs in this module represent Python's built-in exceptions and

src/gil.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 //! Interaction with Python's global interpreter lock
 
 use crate::impl_::not_send::{NotSend, NOT_SEND};

src/impl_/freelist.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 //! Support for [free allocation lists][1].
 //!
 //! This can improve performance for types that are often created and deleted in quick succession.

src/instance.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 use crate::conversion::PyTryFrom;
 use crate::err::{self, PyDowncastError, PyErr, PyResult};
 use crate::gil;

src/marker.rs

@@ -1,7 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-// based on Daniel Grunwald's https://github.com/dgrunwald/rust-cpython
-
 //! Fundamental properties of objects tied to the Python interpreter.
 //!
 //! The Python interpreter is not threadsafe. To protect the Python interpreter in multithreaded

src/prelude.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 //! PyO3's prelude.
 //!
 //! The purpose of this module is to alleviate imports of many commonly used items of the PyO3 crate

src/type_object.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 //! Python type object information
 
 use crate::types::{PyAny, PyType};

src/types/boolobject.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 #[cfg(feature = "experimental-inspect")]
 use crate::inspect::types::TypeInfo;
 use crate::{

src/types/bytearray.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 use crate::err::{PyErr, PyResult};
 use crate::{ffi, AsPyPointer, Py, PyAny, Python};
 use std::os::raw::c_char;

src/types/capsule.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 use crate::Python;
 use crate::{ffi, AsPyPointer, PyAny};
 use crate::{pyobject_native_type_core, PyErr, PyResult};

src/types/code.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2022-present PyO3 Project and Contributors
-
 use crate::ffi;
 use crate::PyAny;
 

src/types/dict.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use super::PyMapping;
 use crate::err::{self, PyErr, PyResult};
 use crate::ffi::Py_ssize_t;

src/types/floatob.rs

@@ -1,6 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-// based on Daniel Grunwald's https://github.com/dgrunwald/rust-cpython
 #[cfg(feature = "experimental-inspect")]
 use crate::inspect::types::TypeInfo;
 use crate::{

src/types/frame.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2022-present PyO3 Project and Contributors
-
 use crate::ffi;
 use crate::PyAny;
 

src/types/frozenset.rs

@@ -1,6 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-
 #[cfg(Py_LIMITED_API)]
 use crate::types::PyIterator;
 use crate::{

src/types/iterator.rs

@@ -1,7 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-// based on Daniel Grunwald's https://github.com/dgrunwald/rust-cpython
-
 use crate::{ffi, AsPyPointer, IntoPyPointer, Py, PyAny, PyErr, PyNativeType, PyResult, Python};
 use crate::{PyDowncastError, PyTryFrom};
 

src/types/list.rs

@@ -1,7 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-// based on Daniel Grunwald's https://github.com/dgrunwald/rust-cpython
-
 use std::convert::TryInto;
 
 use crate::err::{self, PyResult};

src/types/mapping.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use crate::err::{PyDowncastError, PyErr, PyResult};
 use crate::sync::GILOnceCell;
 use crate::type_object::PyTypeInfo;

src/types/mod.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 //! Various types defined by the Python interpreter such as `int`, `str` and `tuple`.
 
 pub use self::any::PyAny;

src/types/module.rs

@@ -1,7 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-// based on Daniel Grunwald's https://github.com/dgrunwald/rust-cpython
-
 use crate::callback::IntoPyCallbackOutput;
 use crate::err::{PyErr, PyResult};
 use crate::exceptions;

src/types/num.rs

@@ -1,7 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-// based on Daniel Grunwald's https://github.com/dgrunwald/rust-cpython
-
 use crate::{ffi, PyAny};
 
 /// Represents a Python `int` object.

src/types/sequence.rs

@@ -1,4 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
 use crate::err::{self, PyDowncastError, PyErr, PyResult};
 use crate::exceptions::PyTypeError;
 #[cfg(feature = "experimental-inspect")]

src/types/set.rs

@@ -1,6 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-
 #[cfg(Py_LIMITED_API)]
 use crate::types::PyIterator;
 use crate::{

src/types/slice.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use crate::err::{PyErr, PyResult};
 use crate::ffi::{self, Py_ssize_t};
 use crate::{AsPyPointer, PyAny, PyObject, Python, ToPyObject};

src/types/string.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 #[cfg(not(Py_LIMITED_API))]
 use crate::exceptions::PyUnicodeDecodeError;
 use crate::types::PyBytes;

src/types/traceback.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use crate::err::{error_on_minusone, PyResult};
 use crate::ffi;
 use crate::types::PyString;

src/types/tuple.rs

@@ -1,5 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-
 use std::convert::TryInto;
 
 use crate::ffi::{self, Py_ssize_t};

src/types/typeobject.rs

@@ -1,7 +1,3 @@
-// Copyright (c) 2017-present PyO3 Project and Contributors
-//
-// based on Daniel Grunwald's https://github.com/dgrunwald/rust-cpython
-
 use crate::err::{self, PyResult};
 use crate::{ffi, AsPyPointer, PyAny, PyTypeInfo, Python};