Python3 install: Use pip3 rather than pip

CMakeLists.txt

@@ -110,7 +110,7 @@ ecbuild_add_option( FEATURE PYTHON
     REQUIRED_PACKAGES "Python VERSION 2.6 NO_LIBS" NumPy
 )
 # For Python2 we build our own bindings (using SWIG) in the build directory
-# but for Python3 one has to add the eccodes-python from pip AFTER the install
+# but for Python3 one has to add the eccodes-python from pip3 AFTER the install
 if( PYTHON_VERSION_MAJOR EQUAL 3 )
     set( HAVE_PYTHON 0 )
 endif()
@@ -387,7 +387,7 @@ add_subdirectory( fortran )
 
 if (PYTHON_VERSION_MAJOR GREATER 2)
     # Python3 is no longer built with SWIG but is a separate
-    # package. User should do: pip install eccodes-python
+    # package. User should do: pip3 install eccodes-python
     #add_subdirectory( python3 )
     set( ECCODES_PYTHON_DIR "python3" )
 else()
@@ -479,6 +479,6 @@ ecbuild_info("   | Please note:                         |")
 ecbuild_info("   | For Python3 support, first install   |")
 ecbuild_info("   | ecCodes and then install the Python  |")
 ecbuild_info("   | bindings from PyPI with:             |")
-ecbuild_info("   |   $ pip install eccodes-python       |")
+ecbuild_info("   |   $ pip3 install eccodes-python      |")
 ecbuild_info("   +--------------------------------------+")
 ecbuild_info("")

INSTALL

@@ -33,10 +33,10 @@ However it requires that cmake be installed on your system.
    > ctest
    > make install
 
-To add the Python3 bindings, use pip install from PyPI as follows:
+To add the Python3 bindings, use pip3 install from PyPI as follows:
-   > pip install eccodes-python
+   > pip3 install eccodes-python
    or
-   > pip install --install-option="--prefix=/path/to/where/you/install/eccodes" eccodes-python
+   > pip3 install --install-option="--prefix=/path/to/where/you/install/eccodes" eccodes-python
 
 You can also pass options to the cmake command above. Some typical examples are:
 

README.md

@@ -53,13 +53,13 @@ INSTALLATION
    make install
    ```
 
-To add the Python3 bindings, use pip install from PyPI as follows:
+To add the Python3 bindings, use pip3 install from PyPI as follows:
    ```
-   pip install eccodes-python
+   pip3 install eccodes-python
    ```
    or
    ```
-   pip install --install-option="--prefix=/path/to/where/you/install/eccodes" eccodes-python
+   pip3 install --install-option="--prefix=/path/to/where/you/install/eccodes" eccodes-python
    ```