Add pypi installer support

.travis.yml

@@ -1,5 +1,6 @@
 language: c
 sudo: required
+python: "3.6"
 
 env:
   global:
@@ -34,6 +35,7 @@ matrix:
         # TODO do `check` or `check_hw` here too, not just `check_sw` (as part of `coverage`)
         - CHECK_RULE=coverage GCOV=1
         - PKG_RULE=gzip
+        - PYPI=yes
         - COVERITY_SCAN_PROJECT_NAME="$TRAVIS_REPO_SLUG"
         - COVERITY_SCAN_BRANCH_PATTERN="master"
         - COVERITY_SCAN_NOTIFICATION_EMAIL="[email protected]"
@@ -113,6 +115,7 @@ before_deploy:
   - eval "$(ssh-agent -s)"
   - chmod 600 /tmp/deploy.rsa
   - ssh-add /tmp/deploy.rsa
+  - if [[ "$PYPI" == "yes" ]]; then cd "build/bindings/python"; fi
 deploy:
   - provider: releases
     api_key:
@@ -151,6 +154,16 @@ deploy:
     on:
       condition: "$TRAVIS_OS_NAME = osx"
       all_branches: true
+  - provider: pypi
+    if: tag IS present
+    skip_cleanup: true
+    on:
+      tags: true
+      condition: "$PYPI = yes"
+    username: __token__
+    password:
+      secure: KfORvnPyLlMANLpcwJjcO44Kt6meP614omJk2GloD+B51SuV64O6N31VDOTi2xqioEk9Cajq7tmNte5YoHVUjL9iWFsBblpzxZoXcy40dn4pFN0kMiE8scszxckbDwuBZhokUVZ2fhfLKf/8xORcwjS3vKqSj5HwQKKvVgukSbQ=
+    distributions: sdist
 
 after_deploy:
   - ${TRAVIS_BUILD_DIR}/CI/travis/after_deploy

appveyor.yml

@@ -90,16 +90,15 @@ build_script:
     - cmake --build . --config %configuration%
 
     - cd bindings/python
-    - python.exe setup.py bdist_wininst
-    - ps: Get-ChildItem dist\libiio-*.exe | Rename-Item -NewName "libiio-py37-win32.exe"
-    - ps: cp dist\*.exe .
-    - ps: rm dist\*.exe
+    - python.exe setup.py sdist
+    - ps: Get-ChildItem dist\libiio-*.tar.gz | Rename-Item -NewName "libiio-py37-win32.tar.gz"
+    - ps: cp dist\*.tar.gz .
+    - ps: rm dist\*.tar.gz
     - set PATH=C:\\Python36;C:\\Python36\\libs;%PATH%
-    - python.exe setup.py bdist_wininst
-    - ls dist
-    - ps: Get-ChildItem dist\libiio-*.exe | Rename-Item -NewName "libiio-py36-win32.exe"
-    - ps: cp dist\*.exe .
-    - ps: rm dist\*.exe
+    - python.exe setup.py sdist
+    - ps: Get-ChildItem dist\libiio-*.tar.gz | Rename-Item -NewName "libiio-py36-win32.tar.gz"
+    - ps: cp dist\*.tar.gz .
+    - ps: rm dist\*.tar.gz
 
     #MSVC 64 bit
     - set PATH=C:\Python37-x64;C:\\Python37-x64\\libs;%PATH%
@@ -111,15 +110,15 @@ build_script:
     - cmake --build . --config %configuration%
 
     - cd bindings/python
-    - python.exe setup.py bdist_wininst
-    - ps: Get-ChildItem dist\libiio-*.exe | Rename-Item -NewName "libiio-py37-amd64.exe"
-    - ps: cp dist\*.exe .
-    - ps: rm dist\*.exe
+    - python.exe setup.py sdist
+    - ps: Get-ChildItem dist\libiio-*.tar.gz | Rename-Item -NewName "libiio-py37-amd64.tar.gz"
+    - ps: cp dist\*.tar.gz .
+    - ps: rm dist\*.tar.gz
     - set PATH=C:\Python36-x64;C:\\Python36-x64\\libs;%PATH%
-    - python.exe setup.py bdist_wininst
-    - ps: Get-ChildItem dist\libiio-*.exe | Rename-Item -NewName "libiio-py36-amd64.exe"
-    - ps: cp dist\*.exe .
-    - ps: rm dist\*.exe
+    - python.exe setup.py sdist
+    - ps: Get-ChildItem dist\libiio-*.tar.gz | Rename-Item -NewName "libiio-py36-amd64.tar.gz"
+    - ps: cp dist\*.tar.gz .
+    - ps: rm dist\*.tar.gz
     - cd c:\projects\libiio\build-win64
 
     #Create the installer
@@ -138,8 +137,8 @@ build_script:
     - copy build-win64\Release\libiio.* c:\%ARCHIVE_NAME%\MS64
     - copy build-win32\bindings\csharp\libiio-sharp.dll c:\%ARCHIVE_NAME%\MS32
     - copy build-win64\bindings\csharp\libiio-sharp.dll c:\%ARCHIVE_NAME%\MS64
-    - copy build-win32\bindings\python\*.exe c:\%ARCHIVE_NAME%\MS32
-    - copy build-win64\bindings\python\*.exe c:\%ARCHIVE_NAME%\MS64
+    - copy build-win32\bindings\python\*.tar.gz c:\%ARCHIVE_NAME%\MS32
+    - copy build-win64\bindings\python\*.tar.gz c:\%ARCHIVE_NAME%\MS64
     - copy build-mingw-win32\Release\libiio.* c:\%ARCHIVE_NAME%\MinGW32
     - copy build-mingw-win64\Release\libiio.* c:\%ARCHIVE_NAME%\MinGW64
     - del c:\%ARCHIVE_NAME%\MinGW32\libiio.iss

bindings/python/setup.py.cmakein

@@ -13,11 +13,77 @@
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 # Lesser General Public License for more details.
 
-from distutils.core import setup
-
-setup(name='libiio',
-		version='${VERSION}',
-		description='Library to use the Industrial IO devices',
-		url='https://github.com/analogdevicesinc/libiio',
-		py_modules=['iio'],
-		)
+import sys
+
+if sys.version_info[0] < 3:
+    from distutils.core import setup
+    from distutils.command.install import install
+
+    config = dict()
+else:
+    from setuptools import setup
+    from setuptools.command.install import install
+
+    config = dict(long_description_content_type="text/markdown")
+
+description = "Library for interfacing with Linux IIO devices"
+
+try:
+    with open("${CMAKE_SOURCE_DIR}/README.md", "r") as fh:
+        long_description = fh.read()
+except:
+    long_description = description
+
+
+class InstallWrapper(install):
+    """Before installing we check if the
+    libiio library is actually installed"""
+
+    def run(self):
+        self._check_libiio_installed()
+        # Run the standard PyPi copy
+        install.run(self)
+
+    def _check_libiio_installed(self):
+        from platform import system as _system
+        from ctypes import CDLL as _cdll
+        from ctypes.util import find_library
+
+        if "Windows" in _system():
+            _iiolib = "libiio.dll"
+        else:
+            # Non-windows, possibly Posix system
+            _iiolib = "iio"
+        try:
+            _lib = _cdll(find_library(_iiolib), use_errno=True, use_last_error=True)
+            if not _lib._name:
+                raise OSError
+        except OSError:
+            msg = "The libiio library could not be found.\n\
+            libiio needs to be installed first before the python bindings.\n\
+            The latest release can be found on GitHub:\n\
+            https://github.com/analogdevicesinc/libiio/releases"
+            raise Exception(msg)
+
+
+config.update(
+    dict(
+        name="libiio",
+        version="${VERSION}",
+        maintainer="Analog Devices, Inc",
+        maintainer_email="[email protected]",
+        description=description,
+        long_description=long_description,
+        url="https://github.com/analogdevicesinc/libiio",
+        py_modules=["iio"],
+        cmdclass={"install": InstallWrapper},
+        classifiers=[
+            "Programming Language :: Python :: 3",
+            "License :: OSI Approved :: GNU Lesser General Public License v2 or later (LGPLv2+)",
+            "Operating System :: OS Independent",
+        ],
+    )
+)
+
+
+setup(**config)

libiio.iss.cmakein

@@ -44,9 +44,6 @@ Name: "turkish"; MessagesFile: "compiler:Languages\Turkish.isl"
 Name: "ukrainian"; MessagesFile: "compiler:Languages\Ukrainian.isl"
 
 [Files]
-Source: "C:\projects\libiio\build-win32\bindings\python\libiio-py37-win32.exe"; DestDir: "{tmp}"; Flags: deleteafterinstall;
-Source: "C:\projects\libiio\build-win64\bindings\python\libiio-py37-amd64.exe"; DestDir: "{tmp}"; Flags: deleteafterinstall;
-
 Source: "C:\projects\libiio\build-win32\Release\libiio.dll"; DestDir: "{sys}"; Flags: 32bit
 Source: "C:\projects\libiio\build-win64\Release\libiio.dll"; DestDir: "{sys}"; Check: Is64BitInstallMode
 
@@ -71,9 +68,3 @@ Source: "C:\projects\libiio\build-win32\bindings\csharp\libiio-sharp.dll"; DestD
 Source: "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\redist\x86\Microsoft.VC120.CRT\msvcr120.dll"; DestDir: "{sys}"; Flags: onlyifdoesntexist 32bit
 Source: "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\redist\x64\Microsoft.VC120.CRT\msvcr120.dll"; DestDir: "{sys}"; Check: Is64BitInstallMode; Flags: onlyifdoesntexist
 
-[Tasks]
-Name:	"install_python_bindings"; Description: "Install libiio Python 3.7 bindings"
-
-[Run]
-Filename: "{tmp}\libiio-py37-amd64.exe"; StatusMsg: "Installing Python bindings"; Check: Is64BitInstallMode; Tasks: install_python_bindings; Flags: skipifsilent
-Filename: "{tmp}\libiio-py37-win32.exe"; StatusMsg: "Installing Python bindings"; Check: not Is64BitInstallMode; Tasks: install_python_bindings; Flags: skipifsilent