DOC: Give python3 precedence over py2 in the install notes (#18603)

Author: topper-123

doc/source/install.rst

@@ -141,28 +141,24 @@ and can take a few minutes to complete.
 Installing using your Linux distribution's package manager.
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The commands in this table will install pandas for Python 2 from your distribution.
-To install pandas for Python 3 you may need to use the package ``python3-pandas``.
+The commands in this table will install pandas for Python 3 from your distribution.
+To install pandas for Python 2 you may need to use the package ``python-pandas``.
 
 .. csv-table::
     :header: "Distribution", "Status", "Download / Repository Link", "Install method"
     :widths: 10, 10, 20, 50
 
 
-    Debian, stable, `official Debian repository <http://packages.debian.org/search?keywords=pandas&searchon=names&suite=all&section=all>`__ , ``sudo apt-get install python-pandas``
-    Debian & Ubuntu, unstable (latest packages), `NeuroDebian <http://neuro.debian.net/index.html#how-to-use-this-repository>`__ , ``sudo apt-get install python-pandas``
-    Ubuntu, stable, `official Ubuntu repository <http://packages.ubuntu.com/search?keywords=pandas&searchon=names&suite=all&section=all>`__ , ``sudo apt-get install python-pandas``
-    Ubuntu, unstable (daily builds), `PythonXY PPA  <https://code.launchpad.net/~pythonxy/+archive/pythonxy-devel>`__; activate by: ``sudo add-apt-repository ppa:pythonxy/pythonxy-devel && sudo apt-get update``, ``sudo apt-get install python-pandas``
-    OpenSuse, stable, `OpenSuse Repository  <http://software.opensuse.org/package/python-pandas?search_term=pandas>`__ , ``zypper in  python-pandas``
-    Fedora, stable, `official Fedora repository  <https://admin.fedoraproject.org/pkgdb/package/rpms/python-pandas/>`__ , ``dnf install python-pandas``
-    Centos/RHEL, stable, `EPEL repository <https://admin.fedoraproject.org/pkgdb/package/rpms/python-pandas/>`__ , ``yum install python-pandas``
-
-
-
-
-
-
+    Debian, stable, `official Debian repository <http://packages.debian.org/search?keywords=pandas&searchon=names&suite=all&section=all>`__ , ``sudo apt-get install python3-pandas``
+    Debian & Ubuntu, unstable (latest packages), `NeuroDebian <http://neuro.debian.net/index.html#how-to-use-this-repository>`__ , ``sudo apt-get install python3-pandas``
+    Ubuntu, stable, `official Ubuntu repository <http://packages.ubuntu.com/search?keywords=pandas&searchon=names&suite=all&section=all>`__ , ``sudo apt-get install python3-pandas``
+    OpenSuse, stable, `OpenSuse Repository  <http://software.opensuse.org/package/python-pandas?search_term=pandas>`__ , ``zypper in  python3-pandas``
+    Fedora, stable, `official Fedora repository  <https://admin.fedoraproject.org/pkgdb/package/rpms/python-pandas/>`__ , ``dnf install python3-pandas``
+    Centos/RHEL, stable, `EPEL repository <https://admin.fedoraproject.org/pkgdb/package/rpms/python-pandas/>`__ , ``yum install python3-pandas``
 
+**However**, the packages in the linux package managers are often a few versions behind, so
+to get the newest version of pandas, it's recommended to install using the ``pip`` or ``conda``
+methods described above.
 
 
 Installing from source