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      1 {\rtf1\ansi\ansicpg1252\cocoartf1504\cocoasubrtf750
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      7 
      8 \f0\fs24 \cf0 This package will install Python $FULL_VERSION for Mac OS X $MACOSX_DEPLOYMENT_TARGET for the following architecture(s): $ARCHITECTURES.\
      9 \
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     11 
     12 \b \cf0 \ul \ulc0 Which installer variant should I use?
     13 \b0 \ulnone \
     14 \
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     16 
     17 \b \cf0 **NEW**
     18 \b0  For Python 3.6, the python.org website now provides only one installer variant for download: one that installs a 
     19 \i 64-bit/32-bit Intel
     20 \i0  Python capable of running on 
     21 \i Mac OS X 10.6 (Snow Leopard)
     22 \i0  or later.  This ReadMe was installed with the 
     23 \i $MACOSX_DEPLOYMENT_TARGET
     24 \i0  variant.  By default, Python will automatically run in 64-bit mode if your system supports it.  The Python installed by this installer is built with private copies of some third-party libraries not included with or newer than those in OS X itself.  The list of these libraries is included at the end of the License.rtf file.
     25 \b \ul \
     26 \
     27 Certificate verification and OpenSSL\
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     29 
     30 \b0 \cf0 \ulnone \
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     32 
     33 \b \cf0 **NEW**
     34 \b0  This variant of Python 3.6 now includes its own private copy of OpenSSL 1.0.2.  Unlike previous releases, the deprecated Apple-supplied OpenSSL libraries are no longer used.  This also means that the trust certificates in system and user keychains managed by the 
     35 \i Keychain Access 
     36 \i0 application and the 
     37 \i security
     38 \i0  command line utility are no longer used as defaults by the Python 
     39 \f1 ssl
     40 \f0  module.  For 3.6.0, a sample command script is included in 
     41 \f1 /Applications/Python 3.6
     42 \f0  to install a curated bundle of default root certificates from the third-party 
     43 \f1 certifi
     44 \f0  package ({\field{\*\fldinst{HYPERLINK "https://pypi.python.org/pypi/certifi"}}{\fldrslt https://pypi.python.org/pypi/certifi}}).  If you choose to use 
     45 \f1 certifi
     46 \f0 , you should consider subscribing to the{\field{\*\fldinst{HYPERLINK "https://certifi.io/en/latest/"}}{\fldrslt  project's email update service}} to be notified when the certificate bundle is updated.\
     47 \
     48 The bundled 
     49 \f1 pip
     50 \f0  included with the Python 3.6 installer has its own default certificate store for verifying download connections.\
     51 \
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     53 
     54 \b \cf0 \ul Update your version of Tcl/Tk to use IDLE or other Tk applications
     55 \b0 \ulnone \
     56 \
     57 To use IDLE or other programs that use the Tkinter graphical user interface toolkit, you need to install a newer third-party version of the 
     58 \i Tcl/Tk
     59 \i0  frameworks.  Visit {\field{\*\fldinst{HYPERLINK "https://www.python.org/download/mac/tcltk/"}}{\fldrslt https://www.python.org/download/mac/tcltk/}} for current information about supported and recommended versions of 
     60 \i Tcl/Tk
     61 \i0  for this version of Python and of Mac OS X.  For the initial release of Python 3.6, the installer is still linked with Tcl/Tk 8.5.\
     62 
     63 \b \ul \
     64 Other changes\
     65 
     66 \b0 \ulnone \
     67 For other changes in this release, see the 
     68 \i What's new
     69 \i0  section in the {\field{\*\fldinst{HYPERLINK "https://www.python.org/doc/"}}{\fldrslt Documentation Set}} for this release and its 
     70 \i Release Notes
     71 \i0  link at {\field{\*\fldinst{HYPERLINK "https://www.python.org/downloads/"}}{\fldrslt https://www.python.org/downloads/}}.\
     72 
     73 \b \ul \
     74 Python 3 and Python 2 Co-existence\
     75 
     76 \b0 \ulnone \
     77 Python.org Python $VERSION and 2.7.x versions can both be installed on your system and will not conflict. Command names for Python 3 contain a 3 in them, 
     78 \f1 python3
     79 \f0  (or
     80 \f1  python$VERSION
     81 \f0 ), 
     82 \f1 idle3
     83 \f0  (or i
     84 \f1 dle$VERSION
     85 \f0 ), 
     86 \f1 pip3
     87 \f0  (or 
     88 \f1 pip$VERSION
     89 \f0 ), etc.  Python 2.7 command names contain a 2 or no digit: 
     90 \f1 python2
     91 \f0  (or 
     92 \f1 python2.7
     93 \f0  or 
     94 \f1 python
     95 \f0 ), 
     96 \f1 idle2
     97 \f0  (or 
     98 \f1 idle2.7
     99 \f0  or 
    100 \f1 idle
    101 \f0 ), etc.\
    102 }