Drop support for Python 3.7 (pasqal-io#513)

* Dropping support for python 3.7

* Using pos-only arguments in binary operators

---------

Co-authored-by: Antoine Cornillot <[email protected]>

.github/workflows/ci.yml

@@ -58,7 +58,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.11"]
+        python-version: ["3.8", "3.11"]
     steps:
       - name: Check out Pulser
         uses: actions/checkout@v3

.github/workflows/publish.yml

@@ -66,7 +66,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
     steps:
       - name: Check out Pulser
         uses: actions/checkout@v3

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
     steps:
       - name: Check out Pulser
         uses: actions/checkout@v3

README.md

@@ -23,7 +23,7 @@ For a comprehensive overview of Pulser, check out [Pulser's white paper](https:/
 
 **Note**: *Pulser v0.6 introduced a split of the ``pulser`` package that prevents it from being correctly upgraded. If you have an older version of ``pulser`` installed and wish to upgrade, make sure to uninstall it first by running ``pip uninstall pulser``.*
 
-To install the latest release of ``pulser``, have Python 3.7.0 or higher installed, then use ``pip``:
+To install the latest release of ``pulser``, have Python 3.8 or higher installed, then use ``pip``:
 
 ```bash
 pip install pulser

docs/source/installation.rst

@@ -10,7 +10,7 @@ Installation
 
   before proceeding to any of the steps below.
 
-To install the latest release of ``pulser``, have Python 3.7.0 or higher
+To install the latest release of ``pulser``, have Python 3.8 or higher
 installed, then use ``pip``: ::
 
   pip install pulser

pulser-core/pulser/channels/base_channel.py

@@ -18,8 +18,7 @@
 import warnings
 from abc import ABC, abstractmethod
 from dataclasses import dataclass, field, fields
-from sys import version_info
-from typing import Any, Optional, Type, TypeVar, cast
+from typing import Any, Literal, Optional, Type, TypeVar, cast
 
 import numpy as np
 from numpy.typing import ArrayLike
@@ -29,18 +28,6 @@
 from pulser.json.utils import obj_to_dict
 from pulser.pulse import Pulse
 
-if version_info[:2] >= (3, 8):  # pragma: no cover
-    from typing import Literal
-else:  # pragma: no cover
-    try:
-        from typing_extensions import Literal  # type: ignore
-    except ImportError:
-        raise ImportError(
-            "Using pulser with Python version 3.7 requires the"
-            " `typing_extensions` module. Install it by running"
-            " `pip install typing-extensions`."
-        )
-
 # Warnings of adjusted waveform duration appear just once
 warnings.filterwarnings("once", "A duration of")
 

pulser-core/pulser/devices/_device_datacls.py

@@ -18,8 +18,7 @@
 from abc import ABC, abstractmethod
 from collections import Counter
 from dataclasses import dataclass, field, fields
-from sys import version_info
-from typing import Any, cast
+from typing import Any, Literal, cast, get_args
 
 import numpy as np
 from scipy.spatial.distance import pdist, squareform
@@ -32,18 +31,6 @@
 from pulser.register.mappable_reg import MappableRegister
 from pulser.register.register_layout import COORD_PRECISION, RegisterLayout
 
-if version_info[:2] >= (3, 8):  # pragma: no cover
-    from typing import Literal, get_args
-else:  # pragma: no cover
-    try:
-        from typing_extensions import Literal, get_args  # type: ignore
-    except ImportError:
-        raise ImportError(
-            "Using pulser with Python version 3.7 requires the"
-            " `typing_extensions` module. Install it by running"
-            " `pip install typing-extensions`."
-        )
-
 DIMENSIONS = Literal[2, 3]
 
 

pulser-core/pulser/parametrized/paramobj.py

@@ -42,7 +42,6 @@
 class OpSupport:
     """Methods for supporting operators on parametrized objects."""
 
-    # TODO: Make operator methods' args pos-only when python 3.7 is dropped
     # Unary operators
     def __neg__(self) -> ParamObj:
         return ParamObj(operator.neg, self)
@@ -93,46 +92,46 @@ def tan(self) -> ParamObj:
         return ParamObj(np.tan, self)
 
     # Binary operators
-    def __add__(self, other: Union[int, float]) -> ParamObj:
+    def __add__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.add, self, other)
 
-    def __radd__(self, other: Union[int, float]) -> ParamObj:
+    def __radd__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.add, other, self)
 
-    def __sub__(self, other: Union[int, float]) -> ParamObj:
+    def __sub__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.sub, self, other)
 
-    def __rsub__(self, other: Union[int, float]) -> ParamObj:
+    def __rsub__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.sub, other, self)
 
-    def __mul__(self, other: Union[int, float]) -> ParamObj:
+    def __mul__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.mul, self, other)
 
-    def __rmul__(self, other: Union[int, float]) -> ParamObj:
+    def __rmul__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.mul, other, self)
 
-    def __truediv__(self, other: Union[int, float]) -> ParamObj:
+    def __truediv__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.truediv, self, other)
 
-    def __rtruediv__(self, other: Union[int, float]) -> ParamObj:
+    def __rtruediv__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.truediv, other, self)
 
-    def __floordiv__(self, other: Union[int, float]) -> ParamObj:
+    def __floordiv__(self, other: Union[int, float], /) -> ParamObj:
         return (self / other).__floor__()
 
-    def __rfloordiv__(self, other: Union[int, float]) -> ParamObj:
+    def __rfloordiv__(self, other: Union[int, float], /) -> ParamObj:
         return (other / self).__floor__()
 
-    def __pow__(self, other: Union[int, float]) -> ParamObj:
+    def __pow__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.pow, self, other)
 
-    def __rpow__(self, other: Union[int, float]) -> ParamObj:
+    def __rpow__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.pow, other, self)
 
-    def __mod__(self, other: Union[int, float]) -> ParamObj:
+    def __mod__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.mod, self, other)
 
-    def __rmod__(self, other: Union[int, float]) -> ParamObj:
+    def __rmod__(self, other: Union[int, float], /) -> ParamObj:
         return ParamObj(operator.mod, other, self)
 
 

pulser-core/pulser/register/register_layout.py

@@ -17,8 +17,8 @@
 
 from collections.abc import Sequence as abcSequence
 from dataclasses import dataclass
+from functools import cached_property
 from hashlib import sha256
-from sys import version_info
 from typing import Any, Optional, cast
 
 import matplotlib.pyplot as plt
@@ -32,18 +32,6 @@
 from pulser.register.register import Register
 from pulser.register.register3d import Register3D
 
-if version_info[:2] >= (3, 8):  # pragma: no cover
-    from functools import cached_property
-else:  # pragma: no cover
-    try:
-        from backports.cached_property import cached_property  # type: ignore
-    except ImportError:
-        raise ImportError(
-            "Using pulser with Python version 3.7 requires the"
-            " `backports.cached-property` module. Install it by running"
-            " `pip install backports.cached-property`."
-        )
-
 COORD_PRECISION = 6
 
 

pulser-core/pulser/sequence/sequence.py

@@ -20,15 +20,16 @@
 import os
 import warnings
 from collections.abc import Iterable, Mapping
-from sys import version_info
 from typing import (
     Any,
     Generic,
+    Literal,
     Optional,
     Tuple,
     TypeVar,
     Union,
     cast,
+    get_args,
     overload,
 )
 
@@ -58,18 +59,6 @@
 from pulser.sequence._seq_drawer import Figure, draw_sequence
 from pulser.sequence._seq_str import seq_to_str
 
-if version_info[:2] >= (3, 8):  # pragma: no cover
-    from typing import Literal, get_args
-else:  # pragma: no cover
-    try:
-        from typing_extensions import Literal, get_args  # type: ignore
-    except ImportError:
-        raise ImportError(
-            "Using pulser with Python version 3.7 requires the"
-            " `typing_extensions` module. Install it by running"
-            " `pip install typing-extensions`."
-        )
-
 DeviceType = TypeVar("DeviceType", bound=BaseDevice)
 
 PROTOCOLS = Literal["min-delay", "no-delay", "wait-for-all"]

pulser-core/pulser/waveforms.py

@@ -21,7 +21,7 @@
 import sys
 import warnings
 from abc import ABC, abstractmethod
-from sys import version_info
+from functools import cached_property
 from types import FunctionType
 from typing import TYPE_CHECKING, Any, Optional, Tuple, Union, cast
 
@@ -40,18 +40,6 @@
 if TYPE_CHECKING:
     from pulser.channels.base_channel import Channel
 
-if version_info[:2] >= (3, 8):  # pragma: no cover
-    from functools import cached_property
-else:  # pragma: no cover
-    try:
-        from backports.cached_property import cached_property  # type: ignore
-    except ImportError:
-        raise ImportError(
-            "Using pulser with Python version 3.7 requires the"
-            " `backports.cached-property` module. Install it by running"
-            " `pip install backports.cached-property`."
-        )
-
 
 class Waveform(ABC):
     """The abstract class for a pulse's waveform."""

pulser-core/requirements.txt

@@ -3,5 +3,3 @@ matplotlib
 # Numpy 1.20 introduces type hints, 1.24.0 breaks matplotlib < 3.6.1
 numpy >= 1.20, != 1.24.0
 scipy
-backports.cached-property; python_version == '3.7'
-typing-extensions; python_version == '3.7'

pulser-core/setup.py

@@ -50,7 +50,7 @@
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
     author="Pulser Development Team",
-    python_requires=">=3.7.0",
+    python_requires=">=3.8",
     license="Apache 2.0",
     classifiers=[
         "Development Status :: 3 - Alpha",

pulser-pasqal/setup.py

@@ -55,7 +55,7 @@
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
     author="Pulser Development Team",
-    python_requires=">=3.7.0",
+    python_requires=">=3.8",
     license="Apache 2.0",
     classifiers=[
         "Development Status :: 3 - Alpha",

pulser-simulation/pulser_simulation/simconfig.py

@@ -16,24 +16,11 @@
 from __future__ import annotations
 
 from dataclasses import dataclass, field
-from sys import version_info
-from typing import Any, Optional, Union
+from typing import Any, Literal, Optional, Union, get_args
 
 import numpy as np
 import qutip
 
-if version_info[:2] >= (3, 8):  # pragma: no cover
-    from typing import Literal, get_args
-else:  # pragma: no cover
-    try:
-        from typing_extensions import Literal, get_args  # type: ignore
-    except ImportError:
-        raise ImportError(
-            "Using pulser with Python version 3.7 requires the"
-            " `typing_extensions` module. Install it by running"
-            " `pip install typing-extensions`."
-        )
-
 NOISE_TYPES = Literal[
     "doppler", "amplitude", "SPAM", "dephasing", "depolarizing", "eff_noise"
 ]

pulser-simulation/requirements.txt

@@ -1,2 +1 @@
 qutip>=4.7.1
-typing-extensions; python_version == '3.7'

pulser-simulation/setup.py

@@ -51,7 +51,7 @@
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
     author="Pulser Development Team",
-    python_requires=">=3.7.0",
+    python_requires=">=3.8",
     license="Apache 2.0",
     classifiers=[
         "Development Status :: 3 - Alpha",

setup.py

@@ -37,7 +37,7 @@
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
     author="Pulser Development Team",
-    python_requires=">=3.7.0",
+    python_requires=">=3.8",
     license="Apache 2.0",
     classifiers=[
         "Development Status :: 3 - Alpha",