o Sk[@sddlmZddlZddlZddlZejZejZejZddl m Z ddl m Z ddl mZmZddlmZddlmZddlmZdd lmZmZmZmZdd lmZdd lmZdd lm Z d Z!dZ"e#de$d%dj&Z'dddZ&ddZ(Gddde Z)Gddde Z*eZ+ddZ,dddZ-dd Z.dd!d"Z/dd#d$Z0dd%d&Z1dd'd(Z2d)d*Z3d+Z4d,Z5d-d.Z6dd/d0Z7dd1d2Z8dd3d4Z9dd5d6Z:d7d8Z;d9d:ZZ>d?d@Z?dAdBZ@dCdDZAddFdGZBe#dHZCdIdJZDdKdLZEdMdNZFdOdPZGGdQdRdReZHdSdTZIddVdWZJGdXdYdYeZKeLdZkr d[d\ZMd]d^ZNd_d`ZOddalPmQZQmRZRddblSmTZTejUdcdZVeVgkrKddgZVeVfdedfZWeQZXeXdgZYeRdheYdiZZdjeZ_[eWdcrdkZ\eKe\eZZ]eOe]dl\Z^Z_e]`e^e_\ZaZbeMe]e]&e^e_ZcecD]Zded`e^e_eMeddmZ_qeWdnreKdoeXdpZ]eOe]e]`dqdr\ZaZbeMe]eWdsrdtZ\eKe\eXduZ]eOe]e]`dvdw\ZaZbeMe]eWdxrdyZ\dzZ^d{Z_eKe\eYZ]eOe]e]`e^e_\ZaZbeed|eaebeMe]e]&e^e_ZceOecdecd`e^e_\ZfZgeed}efegeMecdeWd~rAdehdehdfZ\eKe\eXduZ]eOe]e]`dvdw\ZaZbeMe]eWdredD]Z\eKe\eXdpddZ]eOe]e]`dvdw\ZaZbeMe]qHeWdrdZ\eKe\eXduZ]eOe]e]`dvdw\ZaZbeMe]eWdrdZ\eKe\eXdpZ]eOe]e]`dvdw\ZaZbeMe]e]&dvebdZceeeieceMecdeMecdceWdrdZ\eKe\eRdeXdpedZ]eOe]e]`deTddw\ZaZbeMe]eWdr dZ\eKe\eRdeXdpedZ]eOe]e]`deTddw\ZaZbeMe]dSdSdS))unicode_literalsN) whitespace)truth) stringWidthgetAscentDescent) ParaParser)Flowable)Color)TA_LEFTTA_RIGHT TA_CENTER TA_JUSTIFY)ALL_CANNOT_START)deepcopy)ABagFg?z[%s]+)      …u u u u u u u u u u u u u​u
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u u u　cCsdt|tur |d}t|tur|d}n|dur(d|vr(ddt|DSdd||DS)Nutf8 cSg|]}|dqSrencode.0uwordr&O/var/www/html/env/lib/python3.10/site-packages/xhtml2pdf/reportlab_paragraph.py Kzsplit..cSrr r!r#r&r&r'r(Lr))typebytesdecode _wsc_re_splitsplit)textdelimr&r&r'r.Es    r.cCs$t|tur |d}|dS)Nr)r*r+r,stripr")r/r&r&r'r1Os  r1c@eZdZdZdS) ParaLinesa/ class ParaLines contains the broken into lines representation of Paragraphs kind=0 Simple fontName, fontSize, textColor apply to whole Paragraph lines [(extraSpace1,words1),....,(extraspaceN,wordsN)] kind==1 Complex lines [FragLine1,...,FragLineN] N__name__ __module__ __qualname____doc__r&r&r&r'r3Ur3c@r2)FragLinea class FragLine contains a styled line (ie a line with more than one style):: extraSpace unused space for justification only wordCount 1+spaces in line for justification purposes words [ParaFrags] style text lumps to be concatenated together fontSize maximum fontSize seen on the line; not used at present, but could be used for line spacing. Nr4r&r&r&r'r:ar9r:cCsdtttt|S)N )joinfilterrr.r1)Lr&r&r' _lineCleanqsr?r;cCs ttttt|d}||S)zThis is an internal utility which takes triple- quoted text form within the document and returns (hopefully) the paragraph the user intended originally.r)r=rmapr?r.r<)r/joinerr>r&r&r'cleanBlockQuotedTextvs rBcCs"|dks|dkr||dSdS)Ngư>gư)setXPos)txdxr&r&r'rC}srCcCs,t|||d|dt|| |SNr;rC_textOutr<)rDoffset extraspacewordslastr&r&r'_leftDrawParaLines  rNcCs8|d|}t|||d|dt|| |S)N?r;rGrHrDrJrKrLrMmr&r&r'_centerDrawParaLines   rRcCs4||}t|||d|dt|| |SrFrHrPr&r&r'_rightDrawParaLines   rScCs|t||d|}|r||dn#t|d}|r0||t|||d|dn||dt|| |S)Nr;rGr)rCr<rIlen setWordSpacefloat)rDrJrKrLrMr/nSpacesr&r&r'_justifyDrawParaLines       rXcCs|dkrd}nB|dvr||}n9|dkr|d||d}n*|dvr*|d|}n|dkr3d|}n|d kr9|j<||j=fd|_=n|j0|j=krC|j>9|j<||j=f|j0|_=||_<|j?sZ|j?rZd|_?||_@|j0|_A|j|_Bn>|j?r|j?syd|_?|jC9|j@||jA|jBfd|_Ad|_Bn|j0|jAkr|jC9|j@||jA|jBf|j0|_A|j|_B||_@|jDr|jDs|jDs|jD|_D||_E|j0|_FnB|jDr|jDs|jG9|jE||jD|jFfd|_Dd|_Fn&|jD|jDks|j0|jFkr|jG9|jE||jD|jFf|jD|_D||_E|j0|_F|j H||j+|j}||7}z ||Id7}WqtJy||KdId7}Yqw||d| }|j;r5|j>9|j<||j=ft|drN|j5durN|j89|j:||j5|j7f|j?r_|jC9|j@||jA|jBf|jDrp|jG9|jE||jD|jFf|j|krt$|||jdSdS)N)minmaxrg:0yE>normal _wordSpacercbDefnimgauto)maskbarcode)canvasxoffsetanchorz"Missing %s callback attribute '%s'rrG backColorrr)L XtraStatecur_y_x0 autoLeadingleading leftIndentrg_56ascent_16descent_leading setLeading_olb _oleadingabs setTextOriginstyle letterSpacing setCharSpaceintgetattrrLr`rkkindwidthheight _fontsizercrevalign_canvas drawImageimagegetImagerCrodrawnamebookmarkHorizontalAttributeErrorlabel _fontnamesetFontfontNamerI_setFont textColor setFillColorrisesetRiser/backgroundColorrtbackgroundFontSize backgroundsappend background_x underline underline_xunderlineColor underlinesstrikestrike_x strikeColorstrikeFontSizestrikeslinklink_x linkColorlinksrcount Exceptionr,)cur_xrDlinexsrvx0rxrydalr|r~olbxcywsrWrLfrkrwratxfsiy0iy1cur_x_srorfuncr/txtlenr&r&r' _putFragLines>           "                rcCs&t||t|||t|| dSN)rCr)rDrJrrMr&r&r'_leftDrawParaLineXs  rcCs4|d|j}t||t|||t|| dS)NrO extraSpacerCrrDrJrrMrQr&r&r'_centerDrawParaLineXs  rcCs0||j}t||t|||t|| dSrrrr&r&r'_rightDrawParaLineXs   rcCszt|||j}|jd}|s|rt|dks|jr!t|||n||t|t||||dt|| dS)NrGrhr)rCr wordCountr lineBreakrrUrV)rDrJrrMrrWr&r&r'_justifyDrawParaLineXs    rcCsXt|dst|dst|dst|drdSdD]}t||dt||dkr)dSqdS)z5 returns 1 if two ParaFrags map out the same rkrr)rrcrrtrrrrNrG)r`r)rgar&r&r' _sameFrags rc Csg}g}d}d}|D]}|j}t|tur|d}|dkr|r&d}|}t|}|gkr1dg}|gkrJ|dtvrJ|d|||g}d}|ddD]"}|||f|t ||j |j 7}|d|||g}d}qP|d}|||f|t ||j |j 7}|r|dtvr|d|||g}d}q t |drt |jdd}|r|gkr|d|||g}d}|||dfgq ||dfq t |d r|gkr|d|||g}d}|d|dfgd }q |gkr|d||||S) z given a Parafrag list return a list of fragwords [[size, (f00,w00), ..., (f0n,w0n)],....,[size, (fm0,wm0), ..., (f0n,wmn)]] each pair f,w represents a style and some string each sublist represents a word rFrrNrsrkrrT)r/r*r+r,lstripr.rinsertrrrrcr`rrk) fragsRWn hangingStriprr/Srr&r&r' _getFragWordssv                 rcCs`|}dD] }t||rt||qg|_|j||D]}|dD]}|j|q#q|gS)N)linesrr/rG)cloner`delattrrLrr)blParastartstoprrlrr&r&r'_split_blParaSimples rc Csg}|j||}|D]p}|jD]}||q||dur{t|d}|dkrPt||drPt||jddsP|d8}|dkrPt||drPt||jddr8|dkr{||}|js_d|_q t|jt urm|j d|_|jddkr{|jd7_q |S)NrsrGrrkrrr) rrLrrTr`rrkr/r*r+r,) rrrrrrrirr&r&r'_split_blParaHards$    Xrc Cs||j|t|dd}||j|j|t|dr|jp!|j t |t r.| |nE|D]B}t|dr^|j }|j}|j} |jd} |} || |j|| |t|dd|| q0||j|j||j | |jq0||||jd} t|| |j}|S)zD draw a bullet text could be a simple string or a frag list bulletOffsetYr bulletColorrg?333333?) beginText bulletIndentrrbulletFontNamebulletFontSizerr`rr isinstance basestringtextOutr drawWidth drawHeightrrrzrrcr/drawTextgetXrg) rprJrv bulletTextrtx2rrrrgaprl bulletEndr&r&r' _drawBullets4       rcCs|rBt|trt||j|j}nd}|D] }|t|j|j|j}q|j|d|j}|j |j }||krD|d||8<dSdSdS)zE work out bullet width and adjust maxWidths[0] if neccessary rrN) rrrrrr/rrcrrzfirstLineIndent)rr maxWidths bulletWidthr bulletRightindentr&r&r'_handleBulletWidth=s   rcCsd}||}d}t|}d}}|d} ||krQ||kr1||dkr1|d7}||kr1||dks#||krL|d7}||kr>nd}||} | j}t|}nn||ks||krWdSd} g} d} d} | |kr|d|}|dkrq||kt|||| j| j}| |7} | |kr| gkr| |} | j|dkr|d8}| d8} | j|dksn'|dkr|}| d| ur|| d<n | ||f} | | ||kr|d7}| |kscq)z given a list of ParaFrags we return a list of ParaLines each ParaLine has 1) ExtraSpace 2) blankCount 3) [textDefns....] each text definition is a (ParaFrag, start, limit) triplet rrsrGr)NNNN)rTr/findrrrcr)rwidthslineNummaxWrrlimrr/rrrcLenrWjrr&r&r' splitLines0Ps\ 0        rcCsh|jj||jjj||jjj}|jd|jj |d|j |j }|j ||||||dSrF) rurvrryrrcrrr<rrrr)rt_offrrDlmytextlenr&r&r'_do_under_lines$&r z^[a-zA-Z][-+a-zA-Z0-9]+$cCstjr t|d}|dd}t|dkr|dpd}t|rD|dkrD|dkr.d p/d }|d kr8|d}|jj ||d|d dS|dd krR|dd}d}|jj d|dkr\|p_|d|dd dS)Nr:rGrrrdocumentpdfGoToRURI)relativer#)r) sixPY2 text_typer.rTlower _scheme_rematchrlinkURLlinkRect)rDrrectpartsschemerr&r&r'_doLinks    (rc Csv|j}|jj}|j|||jjd}d|j|d}|j ||j |j }t ||j |||||||fdS)Ng @r;rG)rurryrvrrcr<rrrrrrr) rrrrDrryr r/r r&r&r' _do_link_lines &r c Cs|j}|jj}|j}|j}|dkrt|t|j}n |dkr#t|j}d|j}|j}||}|j D]&\}} } } | d} | d} |j | |j j ||| | || ddddq2g|_ d|_ d|_d|_|d |}|j |d d}|jD]\}} } | |kr|j | | }|j ||| |qxg|_d|_d|_|jD]-\}} } } | d} |d | }| |kr|j | | }|j | d |j ||| |qg|_d|_d|_||}|jD]\}} }} t||||| |fqg|_d|_d|_|j|8_dS) a Try to find out what the variables mean: tx A structure containing more informations about paragraph ??? leading Height of lines ff 1/8 of the font size y0 The "baseline" postion ??? y 1/8 below the baseline rgrf?g?rGrfillstrokeNg?g?r)rurryrxrrgLEADING_FACTORrcrvrrrr backgroundrr setLineWidthrsetStrokeColorrrrrrrrrrr)rDrryrxrffy0r x1x2cfsinlineFFr yUnderlinecscysylrr&r&r' _do_post_textsb    &    r4c CsR|j}|r|}|dkrtj}n|dkrtj}n|dkr!tj}n |dkr'dStd|jt|}|dkrH||djd d|d_dS|tjurd }|D];}|j}|sYqQ|d}| d se|rj||}n| d }|dkr|d||||d}| d }| d|_qQdS|D]}|j}|sq||d d|_qdSdS) N lowercase uppercase capitalizenonez+ParaStyle.textTransform value %r is invalidrGrrTr) textTransformrunicodeuppertitle ValueErrorrTr/r,r" startswithrendswith) rrttrpbrturr&r&r'textTransformFragssF$      rDc@s0eZdZdZddZeddZeddZdS)cjkUz> simple class to hold the frag corresponding to a str cCsJt||}||_t|drt|jdd}||_|St||j|j |_|S)Nrkrr) r:__new___fragr`rrk_widthrrrc)clsvaluefragencodingselfrr&r&r'rF&s  z cjkU.__new__cC|jSr)rGrMr&r&r'0z cjkU.cCrNr)rHrOr&r&r'rP1rQN)r5r6r7r8rFpropertyrKrr&r&r&r'rE!s  rEc Csg}g}t}d}}}|D]^} | j} | j} |r9t| dd} t| ddr0t| j| j| \} }nt| j| \}} nt| j| \}} t || }t ||}t || }t || sh| }d ||_||g}| }|| q|r| }d ||_||td|d|dd|||dS)NrrkrrrG)rrrrLrcr|r~)r:rKrcrrerrrrrgrfrrr<r/r)Ur calcBoundsrLCWf0maxSize maxAscent minDescentrCrrcrkr~r|r&r&r'makeCJKParaLine4s<            rZrc s|ddlm}g}|D](j}t|ts|}|r)|fdd|Dq |t|q g}d}} |d} t |D]c\} } | j } || 7}t | j d}|| |kr\|dkp]|}|r|rcqA| || }|| }|t vry|| 8}| d7} |t|| | ||z|t|} Wn ty|d} Ynw| } | }| d8} qA|dkr|t|| d| ||td|d S) zJ This attempts to be wordSplit for frags using the dumb algorithm r)_FUZZcsg|]}t|qSr&)rE)r$rBrLrr&r'r(csz cjkFragSplit..rrGrsNrr)reportlab.rl_configr[r/rr:r,extendrrE enumeraterr`rKrrZrT IndexErrorr3)rrrTrLr[rSr/r widthUsed lineStartPosmaxWidthrrCrrendLinernextCharr&r\r' cjkFragSplitVsJ        rgc@seZdZdZd"ddZddZd d Zd d Zd dZddZ ddZ ddZ ddZ ddZ ddZd#ddZd$ddZd d!ZdS)% Paragrapha4 Paragraph(text, style, bulletText=None, caseSensitive=1) text a string of stuff to go into the paragraph. style is a style definition as in reportlab.lib.styles. bulletText is an optional bullet defintion. caseSensitive set this to 0 if you want the markup tags and their attributes to be case-insensitive. This class is a flowable that can format a block of text into a paragraph with a given style. The paragraph Text can contain XML-like markup including the tags: ... - bold ... - italics ... - underline ... - strike through ... - superscript ... - subscript link text attributes of links size/fontSize=num name/face/fontName=name fg/textColor/color=color backcolor/backColor/bgcolor=color dest/destination/target/href/link=target anchor text attributes of anchors fontSize=num fontName=name fg/textColor/color=color backcolor/backColor/bgcolor=color href=href The whole may be surrounded by tags The and tags will work for the built-in fonts (Helvetica /Times / Courier). For other fonts you need to register a family of 4 fonts using reportlab.pdfbase.pdfmetrics.registerFont; then use the addMapping function to tell the library that these 4 fonts form a family e.g. from reportlab.lib.fonts import addMapping addMapping('Vera', 0, 0, 'Vera') #normal addMapping('Vera', 0, 1, 'Vera-Italic') #italic addMapping('Vera', 1, 0, 'Vera-Bold') #bold addMapping('Vera', 1, 1, 'Vera-BoldItalic') #italic and bold It will also be able to handle any MathML specified Greek characters. NrGrcCs"||_||_|||||tdSr) caseSensitiverL_setuprB)rMr/rrrrirLr&r&r'__init__szParagraph.__init__cCs|jj}|dg}|j}|D])}t||}t|}t|}d|dd}d|dd}||||q|d|d|S)N(z rz z z z) #) __class__r5__dict__keysrreprreplacerr<)rMrr>rokvrkrvr&r&r'__repr__s      zParagraph.__repr__c Cs|dur6||}|jt_t||\}}}|dur-tdtjd|dtdt|ft|||r6|}||_||_ ||_ ||_ t |_ dS)Nz1xml parser error (%s) in paragraph beginning '%s'r)ri_parserparser=errorsrfrTrDr/rrrPARAGRAPH_DEBUGdebug)rMr/rrrcleanerbulletTextFragsr&r&r'rjs  zParagraph._setupc Cs||jr!tt|dztt|ddWntdY||_|j}|j}|||j|j }|||j }|j dkrH| ||g}n| ||g}||_ t|dt|dd}|j} |jdkr|dvrd } |d kr|jD] } | t| j| j| 7} qqn6|d kr|jD] } | | j| j7} qn#td ||d krt| t|j} n |d krt|j} t|j| } | |_|j| fS) NwrapPz???CJKrxrrGroffrrgrfinvalid autoLeading value %r)r|printidrp getPlainTextrrrzr rightIndentwordWrap breakLinesCJK breakLinesrrryrrrgr|r~r=r%rcrTr) rM availWidth availHeightrrzfirst_line_width later_widthsrrxryrrr&r&r'rsF       zParagraph.wrapcCs||j}t|}|s dS|dkr/|d}|j}|j}t|dr$t|jdp&|j}||fdd}nt|}dd}t t ||S)z? Attempt to determine a minimum sensible width rrGr/rcSs t|||Sr)r)rfSfNr&r&r'rP  z$Paragraph.minWidth..cSs|dSNrr&)xr&r&r'rP#s) rrTrcrr`r.r/rLrrgr@)rMrnFragsrrrrLrr&r&r'minWidthszParagraph.minWidthcCs|jjdkrtp tSr)rrrrrOr&r&r'_get_split_blParaFunc&szParagraph._get_split_blParaFunccCs|jr tt|dt|jdkrgSt|ds||||j}|j}t |dt |dd}|j }|j }|j dkr|dvrd}} |dkrkt |j D]\} } t| j| j|} | | } | |d krcn| } | d}qJnM|d krt |j D]\} } | | j| j} | |d krn| } | d}qtn(td ||} |dkrt|t|j} n |d krt|j} t|| }|| } t|} t |d t |d d}t |d t |d d}|s|dkr|`gS| |kr|gS|s| |dkr|r| dks| dkr|d8}n|`gS|}|jd||j||d|d}td|j d|||d|_d|_d|_| |_||_|jdkr5t|}d|_|jd|d|||| d}dD]}t||r^t||t ||t||t ||qD||gS)Nr.rrrxrrGrrgrhrfr allowWidows allowOrphans)rr)rraHaW)rx) r|rrrTrr`rrrrryrrr`rgr|r~r=r%rcrrrmrr3 _JustifyLast _splitpararrrrsetattr)rMrrrrrxryrsrrrrarrrrP1P2rr&r&r'r.)s             zParagraph.splitcCs||jdSr)drawParar|rOr&r&r'rxszParagraph.drawc$ Cs|jr tt|dt|ttfs|g}n|}g}d}|j}t|j|||d}d|_ t |dt |dd}|dv}|j } t | } | dkrt | dds| d} | j} | j} t| | \}}t | drht| jd pj| j}td | | |j}g}| }|D]M}t|| | |j}|||}||kst |s|||}qz||jkr||_||||f|g}|}|d7}z||}Wqzty|d }Yqzw|gkr||jkr||_||||f| jd|||| d S| dkrtd|j|j|j|jd |jgd St |dr t |ddr |jSd}g}t| D]}|d d} | j} | j} td | | }|s9| }| }t| | \}}|d}|dd} |dkrO|||}n|}t | d}||kr`|dkpa|}|s|rjqt|ddtj krt |ddd}n|dd}|r|d7}| j} |rt | dd}t |ddrt!|j |j"| \}}nt| j| \}}nt| j| \}}t#|| }t#||}t$||}|s| } | g}|| _nt%| | s\|dkrO|dkr|dd kst | drOt | dr2t |d}!|!dkr1||!}"t |"dd}|r"t |dds"|!d8}!q|"j&d s0|"jd 7_ nt| jtd kr?d }#nd}#| j&|#sO| j|#7_| } || || _n0t| jt'urk| j(d| _t|t'urw|(d}|dkr|dd kr| jd |7_|ddD]Q}!|!d} |!d| _|| | j} |rt | dd}t |ddrt!|j |j"| \}}nt| j| \}}nt| j| \}}t#|| }t#||}t$||}q|}q|r| } || ||jkr||_|t)||||||||d|d7}z||}Wnty%|d }Ynw|r/d}g}q|}d}| } | j}|r^t | dd}t |ddrUt!|j |j"|\}}nt| j|\}}nt| j|\}}| g}|dd| _|ddD]Q}!|!d} |!d| _|| | j} |rt | dd}t |ddrt!|j |j"| \}}nt| j| \}}nt| j| \}}t#|| }t#||}t$||}qvq|gkr||jkr||_|t|||||||dtd|dS)a0 Returns a broken line structure. There are two cases A) For the simple case of a single formatting input fragment the output is A fragment specifier with - kind = 0 - fontName, fontSize, leading, textColor - lines= A list of lines Each line has two items. 1. unused width in points 2. word list B) When there is more than one input formatting fragment the output is A fragment specifier with - kind = 1 - lines= A list of fragments each having fields - extraspace (needed for justified) - fontSize - words=word list each word is itself a fragment with various settings This structure can be used to easily draw paragraphs with the various alignments. You can supply either a single width or a list of widths; the latter will have its last item repeated until necessary. A 2-element list is useful when there is a different first line indent; a longer list could be created to facilitate custom wraps around irregular objects. rrrxrrrGrkr/rrs)rrr|r~rc皙ɿ)rrcrrr|r~rrrrzutf-8Nrr;rr)rrrrLrcr|r~)rrrLrcr|r~r])*r|rrrtuplelistrrrrrrrTr`rcrrr.r/rLrrLrrrarr3rrrr*rrrerrgrfrr?r+r,r:)$rMrrrlinenorrdrxrTrrrrcrr|r~rL spaceWidthcLine currentWidthword wordWidthnewWidthrrrWrXrYrrenTextrkrrwispacer&r&r'r~sp                   .                        zParagraph.breakLinesc Cs`|jr tt|dt|ttfs|g}n|}|j}t|j||t |j dkr?t |dt |dd}|dv}t |j |||j St |j sVtd|j|j|jg|jd|jdS|j d}t|d rot |d dro|jd|jjd Sg}d|_|j d}t|d r|j}n dt |d g}ddlm} | ||d|j|j}dd|D} |jd| |jd|jdS)zZInitially, the dumbest possible wrapping algorithm. 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Because mixing chemicals is more difficult than combining light there is a fourth parameter for darkness. For example a chemical combination of the CMY pigments generally never makes a perfect black -- instead producing a muddy color -- so, to get black printers don't use the CMY pigments but use a direct black ink. Because CMYK maps more directly to the way printer hardware works it may be the case that &| & | colors specified in CMYK will provide better fidelity and better control when printed. )g|@gffffffE@irz.Price*NormalrahDieses Kapitel bietet eine schnelle Programme :: starten Eingabeaufforderung :: (>>>) >>> (Eingabeaufforderung) Einführung in Python Python :: Einführung . Das Ziel ist, die grundlegenden Eigenschaften von Python darzustellen, ohne sich zu sehr in speziellen Regeln oder Details zu verstricken. Dazu behandelt dieses Kapitel kurz die wesentlichen Konzepte wie Variablen, Ausdrücke, Kontrollfluss, Funktionen sowie Ein- und Ausgabe. Es erhebt nicht den Anspruch, umfassend zu sein.Codeig33333Ӆ@aLDie eingebaute Funktion range(i, j [, stride]) erzeugt eine Liste von Ganzzahlen und füllt sie mit Werten k, für die gilt: i <= k < j. Man kann auch eine optionale Schrittweite angeben. Die eingebaute Funktion xrange() erfüllt einen ähnlichen Zweck, gibt aber eine unveränderliche Sequenz vom Typ XRangeType zurück. Anstatt alle Werte in der Liste abzuspeichern, berechnet diese Liste ihre Werte, wann immer sie angefordert werden. Das ist sehr viel speicherschonender, wenn mit sehr langen Listen von Ganzzahlen gearbeitet wird. XRangeType kennt eine einzige Methode, s.tolist(), die seine Werte in eine Liste umwandelt.igP@zAfter initial wrapzAfter split wrapz0 %s & %s < >]]>)zqHere comes Helvetica 14 with strong emphasis.zqHere comes Helvetica 14 with strong emphasis.zOHere comes Courier 3cm and normal again.)rizRGenerated by:DilbertzU- bullet 0
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