a ._displayhook)sysr displayhook)rr rrrr r_init_python_printing s rc  szddlm Wnty"Yn0dur`|j} | dkrDdn| dkrRdndtd d |rnd } nd } |d kr| d} || f d}d}td}d||||f}|d}dd|gtdtdtd | pt fdd} fdd fdd fdd d!  fd"d# fd$d%} fd&d'}fd(d)} fd*d+}fd,d-}ddl t j t d.krt ttttttg}|jjd/}|tgD]}|||q|jjd0}|d1vr|dS)?z/Setup printing in IPython interactive session. r) latex_to_pngNZlightbgZBlacklinuxWhiteZGrayz*init_printing: Automatic foreground color:zW\documentclass[varwidth,%s]{standalone} \usepackage{amsmath,amsfonts}%s\begin{document}z\usepackage{euler}svgz \special{color %s}Ztightz0cm,0cmz-T %s -D %d -bg %s -fg %s -O %sg@z --no-fontsz --scale={}zinit_printing: DVIOPTIONS:zinit_printing: DVIOPTIONS_SVG:zinit_printing: PREAMBLE:cs0|r||n|jj|dS)z*caller for pretty, for use in IPython 0.11N)textlibpretty)r pcycle)IPython _can_printrrr _print_plainVsz,_init_ipython_printing.._print_plainc s^t}zt|dd|dWn6tyT}ztddt|WYd}~n d}~00|S)NpngroutputZviewerZ outputbufferpreamble dvioptionsz png printing:"_preview_wrapper exception raised:)rr ExceptionrreprgetvalueoZ exprbuffere)r'r&rr_preview_wrapper]s z0_init_ipython_printing.._preview_wrapperc sdt}zt|dd|dWn6tyT}ztddt|WYd}~n d}~00|dS)Nrrr$z svg printing:r(zutf-8)rrr)rr*r+decoder,)dvioptions_svgr&rr _svg_wrapperjs z,_init_ipython_printing.._svg_wrapperc snz4z|dWWSty0|YWS0Wn4tyh}ztdt|WYd}~dSd}~00dS)N)colorscalezmatplotlib exception caught:) TypeError ValueErrorrr*)r-r.) forecolorrr4rr_matplotlib_wrapperws z3_init_ipython_printing.._matplotlib_wrapper)Z_latexZ _sympystrZ_prettyZ _sympyreprcszttttf}t|rftjdd|DvsHtjdd|DvrNWdStfddDWStt rtfddDWStt rWdStt rWdSt fddDrWdStt tfrވrWdSWdStyYdS0d S) zReturn True if type o can be printed with one of the SymPy printers. If o is a container type, this is True if and only if every element of o can be printed in this way. css|] }|jVqdSN)__str__.0irrr z=_init_ipython_printing.._can_print..css|] }|jVqdSr9)__repr__r;rrrr>r?Fc3s|]}|VqdSr9rr;)r!rrr>r?c3s"|]}|o|VqdSr9rr;)r!r-rrr>r?Tc3s|]}t|VqdSr9)hasattr)r<hookr-rrr>r?N)listtupleset frozenset isinstancetyper:r@alldictboolranyfloatint RuntimeError)r-Z builtin_types)r! print_builtinprinting_hooksrCrr!s*     z*_init_ipython_printing.._can_printc s|r|fdi}dkr,d|}z |WSty}z@tdt|ddkrr|fddi}|WYd}~Sd}~00dS)z A function that returns a png rendered by an external latex distribution, falling back to matplotlib rendering modeplain$\displaystyle %s$preview failed with:z# Falling back to matplotlib backendinlineNrPrr*r-sr.)r!r8r/r latex_moder rr_print_latex_pngs  z0_init_ipython_printing.._print_latex_pngc sp|rl|fdi}dkr,d|}z |WStyj}ztdt|dWYd}~n d}~00dS)zz A function that returns a svg rendered by an external latex distribution, no fallback available. rSrTrUrVz No fallback available.NrXrY)r!r2rr[r rr_print_latex_svgs  z0_init_ipython_printing.._print_latex_svgcs(|r$|fddi}|SdS)zD A function that returns a png rendered by mathtext rSrWNrr-rZ)r!r8rr rr_print_latex_matplotlibsz7_init_ipython_printing.._print_latex_matplotlibcs4|r0|fdi}dkr,d|S|SdS)zW A function to generate the latex representation of SymPy expressions. rSrTrUNrr^)r!rr[r rr_print_latex_texts z1_init_ipython_printing.._print_latex_textcs8|jjr(|}d|vrtt|n tt|dS)zIPython's pretty-printer display hook, for use in IPython 0.10 This function was adapted from: ipython/IPython/hooks.py:155  N)rcpprintr r*)selfr out)rrr_result_displays  z/_init_ipython_printing.._result_displayz0.11z text/plainz image/svg+xml)rz"init_printing: using svg formatterz*init_printing: not using any svg formatterz image/png)Tr#z"init_printing: using png formatterZ matplotlibz)init_printing: using matplotlib formatterz*init_printing: not using any png formatterz text/latex)TZmathjaxz&init_printing: using mathjax formatterz-init_printing: not using text/latex formatterZresult_display)ZIPython.lib.latextoolsr ImportErrorcolorslowerrroundsplitformat default_latexr r __version__rNrErDrFrGrKrOZdisplay_formatter formattersrZfor_typeZ _repr_svg_Z type_printerspopZ_repr_disabledZ _repr_png_Z _repr_latex_Zset_hook)ipr use_latexeulerr7 backcolorfontsizer[rQ latex_printerr4r r3Z addpackagesZ imagesizeoffset resolutionZdviZ svg_scaler"r\r]r_r`rfZprintable_typesZplaintext_formatterclsZ svg_formatterZ png_formatterZlatex_formatterr)r r!r8r/r2r'r1r7rr[rr&rQrRr4r rr_init_ipython_printing!s            &             rzc Csnddlm}d|vrdSzddlm}Wn:tybzddlm}Wnty\YYdS0Yn0t||S)z%Is a shell instance an IPython shell?r)modulesr F)InteractiveShell)rr{ZIPython.core.interactiveshellr|rgZ IPython.iplibrH)shellr{r|rrr _is_ipython:s   r~FTN Transparent10ptrT?c sddl}ddlm}|r4|dur&|}qNddlm}n|durB|}n ddlm}d}|durz t}WntyvYn 0|du}|r|st|}|rB|rBzDddl }t |j t dkrddl m }n ddlm }dd lm}WntyYnP0t|||fsBd d |jvrBdur,td d |durBtdd }tsb|sb|jdn.||rfdd}nfdd}|r|dd}|rtdt||||| | | | | ||f i|nt|fi|dS)a* Initializes pretty-printer depending on the environment. Parameters ========== pretty_print : bool, default=True If ``True``, use :func:`~.pretty_print` to stringify or the provided pretty printer; if ``False``, use :func:`~.sstrrepr` to stringify or the provided string printer. order : string or None, default='lex' There are a few different settings for this parameter: ``'lex'`` (default), which is lexographic order; ``'grlex'``, which is graded lexographic order; ``'grevlex'``, which is reversed graded lexographic order; ``'old'``, which is used for compatibility reasons and for long expressions; ``None``, which sets it to lex. use_unicode : bool or None, default=None If ``True``, use unicode characters; if ``False``, do not use unicode characters; if ``None``, make a guess based on the environment. use_latex : string, bool, or None, default=None If ``True``, use default LaTeX rendering in GUI interfaces (png and mathjax); if ``False``, do not use LaTeX rendering; if ``None``, make a guess based on the environment; if ``'png'``, enable LaTeX rendering with an external LaTeX compiler, falling back to matplotlib if external compilation fails; if ``'matplotlib'``, enable LaTeX rendering with matplotlib; if ``'mathjax'``, enable LaTeX text generation, for example MathJax rendering in IPython notebook or text rendering in LaTeX documents; if ``'svg'``, enable LaTeX rendering with an external latex compiler, no fallback wrap_line : bool If True, lines will wrap at the end; if False, they will not wrap but continue as one line. This is only relevant if ``pretty_print`` is True. num_columns : int or None, default=None If ``int``, number of columns before wrapping is set to num_columns; if ``None``, number of columns before wrapping is set to terminal width. This is only relevant if ``pretty_print`` is ``True``. no_global : bool, default=False If ``True``, the settings become system wide; if ``False``, use just for this console/session. ip : An interactive console This can either be an instance of IPython, or a class that derives from code.InteractiveConsole. euler : bool, optional, default=False Loads the euler package in the LaTeX preamble for handwritten style fonts (http://www.ctan.org/pkg/euler). forecolor : string or None, optional, default=None DVI setting for foreground color. ``None`` means that either ``'Black'``, ``'White'``, or ``'Gray'`` will be selected based on a guess of the IPython terminal color setting. See notes. backcolor : string, optional, default='Transparent' DVI setting for background color. See notes. fontsize : string, optional, default='10pt' A font size to pass to the LaTeX documentclass function in the preamble. Note that the options are limited by the documentclass. Consider using scale instead. latex_mode : string, optional, default='plain' The mode used in the LaTeX printer. Can be one of: ``{'inline'|'plain'|'equation'|'equation*'}``. print_builtin : boolean, optional, default=True If ``True`` then floats and integers will be printed. If ``False`` the printer will only print SymPy types. str_printer : function, optional, default=None A custom string printer function. This should mimic :func:`~.sstrrepr()`. pretty_printer : function, optional, default=None A custom pretty printer. This should mimic :func:`~.pretty()`. latex_printer : function, optional, default=None A custom LaTeX printer. This should mimic :func:`~.latex()`. scale : float, optional, default=1.0 Scale the LaTeX output when using the ``'png'`` or ``'svg'`` backends. Useful for high dpi screens. settings : Any additional settings for the ``latex`` and ``pretty`` commands can be used to fine-tune the output. Examples ======== >>> from sympy.interactive import init_printing >>> from sympy import Symbol, sqrt >>> from sympy.abc import x, y >>> sqrt(5) sqrt(5) >>> init_printing(pretty_print=True) # doctest: +SKIP >>> sqrt(5) # doctest: +SKIP ___ \/ 5 >>> theta = Symbol('theta') # doctest: +SKIP >>> init_printing(use_unicode=True) # doctest: +SKIP >>> theta # doctest: +SKIP \u03b8 >>> init_printing(use_unicode=False) # doctest: +SKIP >>> theta # doctest: +SKIP theta >>> init_printing(order='lex') # doctest: +SKIP >>> str(y + x + y**2 + x**2) # doctest: +SKIP x**2 + x + y**2 + y >>> init_printing(order='grlex') # doctest: +SKIP >>> str(y + x + y**2 + x**2) # doctest: +SKIP x**2 + x + y**2 + y >>> init_printing(order='grevlex') # doctest: +SKIP >>> str(y * x**2 + x * y**2) # doctest: +SKIP x**2*y + x*y**2 >>> init_printing(order='old') # doctest: +SKIP >>> str(x**2 + y**2 + x + y) # doctest: +SKIP x**2 + x + y**2 + y >>> init_printing(num_columns=10) # doctest: +SKIP >>> x**2 + x + y**2 + y # doctest: +SKIP x + y + x**2 + y**2 Notes ===== The foreground and background colors can be selected when using ``'png'`` or ``'svg'`` LaTeX rendering. Note that before the ``init_printing`` command is executed, the LaTeX rendering is handled by the IPython console and not SymPy. The colors can be selected among the 68 standard colors known to ``dvips``, for a list see [1]_. In addition, the background color can be set to ``'Transparent'`` (which is the default value). When using the ``'Auto'`` foreground color, the guess is based on the ``colors`` variable in the IPython console, see [2]_. Hence, if that variable is set correctly in your IPython console, there is a high chance that the output will be readable, although manual settings may be needed. References ========== .. [1] https://en.wikibooks.org/wiki/LaTeX/Colors#The_68_standard_colors_known_to_dvips .. [2] https://ipython.readthedocs.io/en/stable/config/details.html#terminal-colors See Also ======== sympy.printing.latex sympy.printing.pretty rN)Printer)r)sstrreprFz1.0)TerminalInteractiveShell)InteractiveConsolezipython-consolerz*init_printing: Setting use_unicode to TrueTz(init_printing: Setting use_latex to Trueorder use_unicode wrap_line num_columnscs|fd|S)Nrrexprr _stringify_funcrrrrrr$szinit_printing..cs|fdi|S)Nrrr)rrrrr,s rSzMinit_printing: Mode is not able to be set due to internalsof IPython printing)rZsympy.printing.printerrZsympy.printingrrZ get_ipython NameErrorr~r rrnZ!IPython.terminal.interactiveshellrZ*IPython.frontend.terminal.interactiveshellcoderrgrHjoinargvr NO_GLOBALZset_global_settingsrprzr)Z pretty_printrrrrrrZ no_globalrqrsr7rtrur[rQZ str_printerZpretty_printerrvr4r rrrZ in_ipythonr rrZmode_in_settingsrrr init_printingOsr             r)TNNNNNFNFNrrrTTNNNr)__doc__Zsympy.external.importtoolsriorZsympy.printing.latexrrmZsympy.printing.previewrZsympy.utilities.miscrZsympy.printing.defaultsrrrzr~rrrrrrs(