Class RegistryKey


  • public class RegistryKey
    extends java.lang.Object
    Supported registry keys and their usage. Boolean properties are set with the String values true or yes for true, or false or no for false.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String PYTHON_CACHEDIR
      python.cachedir defines the directory to use for caches (currently just package information).
      static java.lang.String PYTHON_CACHEDIR_SKIP
      Setting python.cachedir.skip to true disables the package scan for the cachedir (as defined by python.cachedir or a default).
      static java.lang.String PYTHON_CONSOLE
      python.console names the class used for the Jython console.
      static java.lang.String PYTHON_CONSOLE_ENCODING
      python.console.encoding is the encoding used reading commands from the console.
      static java.lang.String PYTHON_CPYTHON
      python.cpython2 is the name of a CPython executable, version 2.7.
      static java.lang.String PYTHON_DIVISION_WARNING
      python.division.warning will print deprecation warnings when doing forced floor rounding with the / division operator.
      static java.lang.String PYTHON_IMPORT_SITE
      python.import.site controls whether to import site.py.
      static java.lang.String PYTHON_INSPECT
      When python.inspect is set, and a script given on the command line finishes, start an interactive interpreter.
      static java.lang.String PYTHON_IO_ENCODING
      python.io.encoding controls the encoding of sys.stdin, sys.stdout, and sys.stderr.
      static java.lang.String PYTHON_IO_ERRORS
      python.io.errors is the unicode error handler for I/O encoding problems.
      static java.lang.String PYTHON_LOCALE_CONTROL
      python.locale.control determines locale module behaviour, including enabling locale module support, currently in beta.
      static java.lang.String PYTHON_MODULES_BUILTIN
      python.modules.builtin controls the list of builtin modules; you can add, remove, or override builtin modules.
      static java.lang.String PYTHON_OPTIONS_CASE_OK
      If python.options.caseok is true, Jython will use the first module found on sys.path where java File.isFile() returns true.
      static java.lang.String PYTHON_OPTIONS_INCLUDE_JAVA_STACK_IN_EXCEPTIONS
      python.options.includeJavaStackInExceptions controls whether exceptions raised from Python code will include a Java stack trace in addition to the Python traceback.
      static java.lang.String PYTHON_OPTIONS_PROXY_DEBUG_DIRECTORY
      python.options.proxyDebugDirectory is the directory where dynamically generated classes are written.
      static java.lang.String PYTHON_OPTIONS_Q_NEW
      python.options.Qnew controls whether true division is enabled for the / operator.
      static java.lang.String PYTHON_OPTIONS_SHOW_JAVA_EXCEPTIONS
      When an exception occurs in Java code, and it is not caught, python.options.showJavaExceptions controls whether the interpreter prints out the Java exception in the traceback.
      static java.lang.String PYTHON_OPTIONS_SHOW_PYTHON_PROXY_EXCEPTIONS
      When python.options.showPythonProxyExceptions is true, python exceptions raised in overridden methods will be shown on stderr.
      static java.lang.String PYTHON_OS
      python.os defines the string used to report the underlying operating system.
      static java.lang.String PYTHON_PACKAGES_DIRECTORIES
      python.packages.directories defines a sequence of property names.
      static java.lang.String PYTHON_PACKAGES_FAKEPATH
      python.packages.fakepath defines a sequence of directories and JARs that are to be sources of Python packages.
      static java.lang.String PYTHON_PACKAGES_PATHS
      python.packages.paths defines a sequence of property names.
      static java.lang.String PYTHON_PATH
      python.path is the search path for Python modules, equivalent to CPython's PYTHONPATH environment variable.
      static java.lang.String PYTHON_SECURITY_RESPECT_JAVA_ACCESSIBILITY
      If python.security.respectJavaAccessibility is false, and you are using a Java version before Java 9, then Jython can access non-public fields, methods, and constructors.
      static java.lang.String PYTHON_SRE_CACHESPEC
      python.sre.cachespec is the specification for the SRE_STATE code point cache used by regular expressions.
      static java.lang.String PYTHON_STARTUP
      python.startup is the name of a file to be run at the start of each interactive session, but not when dropping in with the -i flag in after a script has run.
      static java.lang.String PYTHON_VERBOSE
      python.verbose sets the verbosity level for varying degrees of informative messages.
      static java.lang.String USER_HOME
      user.home sets the user home directory.
    • Method Summary

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • PYTHON_CACHEDIR

        public static final java.lang.String PYTHON_CACHEDIR
        python.cachedir defines the directory to use for caches (currently just package information). This directory should be writable by the user. If this is an absolute path it is used as given, otherwise it is interpreted relative to sys.prefix (typically the directory of this file).
        See Also:
        Constant Field Values
      • PYTHON_CACHEDIR_SKIP

        public static final java.lang.String PYTHON_CACHEDIR_SKIP
        Setting python.cachedir.skip to true disables the package scan for the cachedir (as defined by python.cachedir or a default). Please be aware that disabling this will break importing from java packages.
        See Also:
        Constant Field Values
      • PYTHON_CPYTHON

        public static final java.lang.String PYTHON_CPYTHON
        python.cpython2 is the name of a CPython executable, version 2.7.
        See Also:
        Constant Field Values
      • PYTHON_DIVISION_WARNING

        public static final java.lang.String PYTHON_DIVISION_WARNING
        python.division.warning will print deprecation warnings when doing forced floor rounding with the / division operator.

        "3/2" equals 1 in Python 2.x (forced floor rounding) and 1.5 in Python 3 (convert ints to floats). This is equivalent to -Qwarn on the command line. See PEP 238.

        Values: old, warn, warnall.

        This property will be deprecated and removed in 3.x.

        See Also:
        Constant Field Values
      • PYTHON_CONSOLE

        public static final java.lang.String PYTHON_CONSOLE
        python.console names the class used for the Jython console. Jython ships with a JLine console (http://jline.sourceforge.net/) out of the box. This is selected by default in the Jython command-line application (jython) if you do not define python.console to be another class on the command line. Alternatively, you can set python.console in the registry, but be aware that this will also affect the console in applications that embed a PythonInterpreter, or use Jython as a JSR-223 script engine.
        Values for python.console
        JLineConsole (default)
        PlainConsole (featureless)

        You may also set this to the name of a different console class in your classpath that extends PlainConsole. Note that org.python.util.ReadlineConsole has been removed in 2.7.

        See Also:
        Constant Field Values
      • PYTHON_CONSOLE_ENCODING

        public static final java.lang.String PYTHON_CONSOLE_ENCODING
        python.console.encoding is the encoding used reading commands from the console. Must be a valid Java codec name, such as cp850.
        See Also:
        Constant Field Values
      • PYTHON_IMPORT_SITE

        public static final java.lang.String PYTHON_IMPORT_SITE
        python.import.site controls whether to import site.py. Boolean.

        Equivalent to -S on the command line.

        See Also:
        Constant Field Values
      • PYTHON_INSPECT

        public static final java.lang.String PYTHON_INSPECT
        When python.inspect is set, and a script given on the command line finishes, start an interactive interpreter. Any non-empty string value will enable this behaviour.

        Equivalent to the -i option on the command-line, or The session only actually starts if the console is interactive.

        See Also:
        Constant Field Values
      • PYTHON_IO_ENCODING

        public static final java.lang.String PYTHON_IO_ENCODING
        python.io.encoding controls the encoding of sys.stdin, sys.stdout, and sys.stderr. The encoding must name a Python codec, as in codecs.encode().
        See Also:
        Constant Field Values
      • PYTHON_IO_ERRORS

        public static final java.lang.String PYTHON_IO_ERRORS
        python.io.errors is the unicode error handler for I/O encoding problems.
        See Also:
        Constant Field Values
      • PYTHON_LOCALE_CONTROL

        public static final java.lang.String PYTHON_LOCALE_CONTROL
        python.locale.control determines locale module behaviour, including enabling locale module support, currently in beta.

        Values:

        Values for python.locale.control
        settable Python locale module is available and supports setlocale() and other standard functions. This will be the default in a future Jython version.
        jython2_legacy (default) Mix of implicit Java locale and emulated 'C' locale behaviour, consistent with behaviour in Jython 2.7.1 and earlier. Will be deprecated in a future Jython version.

        More detail can be found in the documentation for the locale module and the underlying platform services exposed in _locale.

        See Also:
        Constant Field Values
      • PYTHON_MODULES_BUILTIN

        public static final java.lang.String PYTHON_MODULES_BUILTIN
        python.modules.builtin controls the list of builtin modules; you can add, remove, or override builtin modules. The value for this registry key is a comma separated list of module entries, each entry of which has the following allowable forms:

        Values for python.modules.builtin
        name The module name is name and the class name is org.python.modules.name
        name:class The module name is name and the class name is class where class must be a fully qualified Java class name
        name:null The module name is removed from the list of builtin modules

        A good example would be to use a jni version of os for more functionality by having an entry such as os:com.foo.jni.os

        See Also:
        Constant Field Values
      • PYTHON_OPTIONS_CASE_OK

        public static final java.lang.String PYTHON_OPTIONS_CASE_OK
        If python.options.caseok is true, Jython will use the first module found on sys.path where java File.isFile() returns true. Setting this will have no effect on unix-type filesystems. On Windows/HFS+ systems setting it to true will enable Jython-2.0 behaviour.
        See Also:
        Constant Field Values
      • PYTHON_OPTIONS_INCLUDE_JAVA_STACK_IN_EXCEPTIONS

        public static final java.lang.String PYTHON_OPTIONS_INCLUDE_JAVA_STACK_IN_EXCEPTIONS
        python.options.includeJavaStackInExceptions controls whether exceptions raised from Python code will include a Java stack trace in addition to the Python traceback. This can slow raising considerably. Boolean, true by default.
        See Also:
        Constant Field Values
      • PYTHON_OPTIONS_SHOW_JAVA_EXCEPTIONS

        public static final java.lang.String PYTHON_OPTIONS_SHOW_JAVA_EXCEPTIONS
        When an exception occurs in Java code, and it is not caught, python.options.showJavaExceptions controls whether the interpreter prints out the Java exception in the traceback. Boolean, false by default.
        See Also:
        Constant Field Values
      • PYTHON_OPTIONS_SHOW_PYTHON_PROXY_EXCEPTIONS

        public static final java.lang.String PYTHON_OPTIONS_SHOW_PYTHON_PROXY_EXCEPTIONS
        When python.options.showPythonProxyExceptions is true, python exceptions raised in overridden methods will be shown on stderr.
        See Also:
        Constant Field Values
      • PYTHON_OPTIONS_PROXY_DEBUG_DIRECTORY

        public static final java.lang.String PYTHON_OPTIONS_PROXY_DEBUG_DIRECTORY
        python.options.proxyDebugDirectory is the directory where dynamically generated classes are written. Nothing is ever read from here, it is only for debugging purposes.
        See Also:
        Constant Field Values
      • PYTHON_OPTIONS_Q_NEW

        public static final java.lang.String PYTHON_OPTIONS_Q_NEW
        python.options.Qnew controls whether true division is enabled for the / operator. See PEP 238. Boolean.

        Equivalent to -Qnew on the command line.

        See Also:
        Constant Field Values
      • PYTHON_OS

        public static final java.lang.String PYTHON_OS
        python.os defines the string used to report the underlying operating system. Used as prefix when resolving which operating system, impacting some OS-specific behaviour.
        See Also:
        Constant Field Values
      • PYTHON_PACKAGES_FAKEPATH

        public static final java.lang.String PYTHON_PACKAGES_FAKEPATH
        python.packages.fakepath defines a sequence of directories and JARs that are to be sources of Python packages.
        See Also:
        Constant Field Values
      • PYTHON_PACKAGES_PATHS

        public static final java.lang.String PYTHON_PACKAGES_PATHS
        python.packages.paths defines a sequence of property names. Each property is a path string. The default setting causes directories and JARs on the classpath and in the JRE (before Java 9) to be sources of Python packages.
        See Also:
        Constant Field Values
      • PYTHON_PACKAGES_DIRECTORIES

        public static final java.lang.String PYTHON_PACKAGES_DIRECTORIES
        python.packages.directories defines a sequence of property names. Each property name is a path string, in which the elements are directories. Each directory contains JAR/ZIP files that are to be a source of Python packages. By default, these directories are those where the JVM stores its optional packages as JARs (a mechanism withdrawn in Java 9).
        See Also:
        Constant Field Values
      • PYTHON_PATH

        public static final java.lang.String PYTHON_PATH
        python.path is the search path for Python modules, equivalent to CPython's PYTHONPATH environment variable.
        See Also:
        Constant Field Values
      • PYTHON_SECURITY_RESPECT_JAVA_ACCESSIBILITY

        public static final java.lang.String PYTHON_SECURITY_RESPECT_JAVA_ACCESSIBILITY
        If python.security.respectJavaAccessibility is false, and you are using a Java version before Java 9, then Jython can access non-public fields, methods, and constructors. Normally, Jython can only provide access to public members of classes.

        This may be deprecated in the future due to Java changes to accessibility from version 9 (at least for Oracle JDK and OpenJDK). See documentation on the --illegal-access (new) and --permit-illegal-access java command line flags for more detail.

        Boolean.

        See Also:
        Constant Field Values
      • PYTHON_SRE_CACHESPEC

        public static final java.lang.String PYTHON_SRE_CACHESPEC
        python.sre.cachespec is the specification for the SRE_STATE code point cache used by regular expressions. The spec string is in the comma separated key=value format of com.google.common.cache.CacheBuilder, within guava (which is also the source of the cache implementation).
        See Also:
        Constant Field Values
      • PYTHON_STARTUP

        public static final java.lang.String PYTHON_STARTUP
        python.startup is the name of a file to be run at the start of each interactive session, but not when dropping in with the -i flag in after a script has run.
        See Also:
        Constant Field Values
      • PYTHON_VERBOSE

        public static final java.lang.String PYTHON_VERBOSE
        python.verbose sets the verbosity level for varying degrees of informative messages. Valid values in order of increasing verbosity are error, warning, message, comment, debug.
        See Also:
        Constant Field Values
      • USER_HOME

        public static final java.lang.String USER_HOME
        user.home sets the user home directory.
        See Also:
        Constant Field Values