generated from latest doc files

1 files changed, 784 insertions, 639 deletions

diff --git a/Doc/ref/ref.ps b/Doc/ref/ref.ps
index 766f8f7..dc3347f 100644
--- a/Doc/ref/ref.ps
+++ b/Doc/ref/ref.ps
@@ -2162,7 +2162,7 @@ end
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+(\050See \322Primaries\323 on page) 72 593.67 T
+(29 for the syntax definitions for the last three symbols.\051) 186.25 593.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(Assignment of an object to a single target is recursively defined as follows.) 72 546.67 T
+0.34 (An assignment statement evaluates the expression list \050remember that this can be a single expression or a) 72 568.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 527.67 T
+-0.25 (comma-separated list, the latter yielding a tuple\051 and assigns the single resulting object to each of the target) 72 555.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(If the target is an identifier \050name\051:) 86.4 527.67 T
+(lists, from left to right.) 72 542.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 100.8 508.67 T
+-0.07 (Assignment is defined recursively depending on the form of the target \050list\051. When a target is part of a mu-) 72 517.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.19 (If the name does not occur in a) 115.2 508.67 P
-2 F
-0.44 (global) 255.37 508.67 P
-1 F
-0.19 ( statement in the current code block: the name is bound) 294.96 508.67 P
+-0.18 (table object \050an attribute reference, subscription or slicing\051, the mutable object must ultimately perform the) 72 504.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(to the object in the current local name space.) 115.2 495.67 T
+-0.27 (assignment and decide about its validity, and may raise an exception if the assignment is unacceptable. The) 72 491.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 100.8 476.67 T
+0.27 (rules observed by various types and the exceptions raised are given with the definition of the object types) 72 478.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(Otherwise: the name is bound to the object in the current global name space.) 115.2 476.67 T
+(\050See \322The standard type hierarchy\323 on page) 72 465.67 T
+(12.\051) 267.18 465.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.58 (The name is rebound if it was already bound. This can cause the reference count for the object previously) 86.4 459.67 P
+(Assignment of an object to a target list is recursively defined as follows.) 72 440.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(bound to the name to reach zero, causing the object to be deallocated and its) 86.4 446.67 T
+(\245) 72 421.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 427.67 T
+(If the target list is a single target: the object is assigned to that target.) 86.4 421.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.16 (If the target is a target list enclosed in parentheses: the object is assigned to that target list as described) 86.4 427.67 P
+(\245) 72 402.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(above.) 86.4 414.67 T
+-0.14 (If the target list is a comma-separated list of targets: the object must be a tuple with the same number of) 86.4 402.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 395.67 T
+-0.62 (items as there are targets in the target list, and the items are assigned, from left to right, to the correspond-) 86.4 389.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.24 (If the target is a target list enclosed in square brackets: the object must be a list with the same number of) 86.4 395.67 P
+(ing targets.) 86.4 376.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.38 (items as the target list contains targets, and its items are assigned, from left to right, to the corresponding) 86.4 382.67 P
+(Assignment of an object to a single target is recursively defined as follows.) 72 351.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(targets.) 86.4 369.67 T
+(\245) 72 332.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 350.67 T
+(If the target is an identifier \050name\051:) 86.4 332.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.56 (If the target is an attribute reference: The primary expression in the reference is evaluated. It should yield) 86.4 350.67 P
+(\245) 100.8 313.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.7 (an object with assignable attributes; if this is not the case,) 86.4 337.67 P
+0.19 (If the name does not occur in a) 115.2 313.67 P
 2 F
-1.69 (TypeError) 350.19 337.67 P
+0.44 (global) 255.37 313.67 P
 1 F
-0.7 ( is raised. That object is then) 409.59 337.67 P
+0.19 ( statement in the current code block: the name is bound) 294.96 313.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.34 (asked to assign the assigned object to the given attribute; if it cannot perform the assignment, it raises an) 86.4 324.67 P
+(to the object in the current local name space.) 115.2 300.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(exception \050usually but not necessarily) 86.4 311.67 T
-2 F
-(AttributeError) 255.35 311.67 T
-1 F
-(\051.) 347.75 311.67 T
+(\245) 100.8 281.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 292.67 T
+(Otherwise: the name is bound to the object in the current global name space.) 115.2 281.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.31 (If the target is a subscription: The primary expression in the reference is evaluated. It should yield either) 86.4 292.67 P
+-0.58 (The name is rebound if it was already bound. This can cause the reference count for the object previously) 86.4 264.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.25 (a mutable sequence \050list\051 object or a mapping \050dictionary\051 object. Next, the subscript expression is eval-) 86.4 279.67 P
+(bound to the name to reach zero, causing the object to be deallocated and its) 86.4 251.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(uated.) 86.4 266.67 T
+(\245) 72 232.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.11 (If the primary is a mutable sequence object \050a list\051, the subscript must yield a plain integer. If it is nega-) 86.4 249.67 P
+0.16 (If the target is a target list enclosed in parentheses: the object is assigned to that target list as described) 86.4 232.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.26 (tive, the sequence\325s length is added to it. The resulting value must be a nonnegative integer less than the) 86.4 236.67 P
+(above.) 86.4 219.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.01 (sequence\325s length, and the sequence is asked to assign the assigned object to its item with that index. If) 86.4 223.67 P
+(\245) 72 200.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.39 (the index is out of range,) 86.4 210.67 P
-2 F
--0.93 (IndexError) 196.2 210.67 P
-1 F
--0.39 ( is raised \050assignment to a subscripted sequence cannot add new) 262.2 210.67 P
+-0.24 (If the target is a target list enclosed in square brackets: the object must be a list with the same number of) 86.4 200.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(items to a list\051.) 86.4 197.67 T
+-0.38 (items as the target list contains targets, and its items are assigned, from left to right, to the corresponding) 86.4 187.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.28 (If the primary is a mapping \050dictionary\051 object, the subscript must have a type compatible with the map-) 86.4 180.67 P
+(targets.) 86.4 174.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.27 (ping\325s key type, and the mapping is then asked to create a key/datum pair which maps the subscript to) 86.4 167.67 P
+(\245) 72 155.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.15 (the assigned object. This can either replace an existing key/value pair with the same key value, or insert) 86.4 154.67 P
+-0.56 (If the target is an attribute reference: The primary expression in the reference is evaluated. It should yield) 86.4 155.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(a new key/value pair \050if no key with the same value existed\051.) 86.4 141.67 T
+0.7 (an object with assignable attributes; if this is not the case,) 86.4 142.67 P
+2 F
+1.69 (TypeError) 350.19 142.67 P
+1 F
+0.7 ( is raised. That object is then) 409.59 142.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(\245) 72 122.67 T
+-0.34 (asked to assign the assigned object to the given attribute; if it cannot perform the assignment, it raises an) 86.4 129.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.06 (If the target is a slicing: The primary expression in the reference is evaluated. It should yield a mutable) 86.4 122.67 P
+(exception \050usually but not necessarily) 86.4 116.67 T
+2 F
+(AttributeError) 255.35 116.67 T
+1 F
+(\051.) 347.75 116.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.31 (sequence object \050e.g. a list\051. The assigned object should be a sequence object of the same type. Next, the) 86.4 109.67 P
+(\245) 72 97.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.04 (lower and upper bound expressions are evaluated, insofar they are present; defaults are zero and the se-) 86.4 96.67 P
+-0.31 (If the target is a subscription: The primary expression in the reference is evaluated. It should yield either) 86.4 97.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-1.16 (quence\325s length. The bounds should evaluate to \050small\051 integers. If either bound is negative, the se-) 86.4 83.67 P
+-0.25 (a mutable sequence \050list\051 object or a mapping \050dictionary\051 object. Next, the subscript expression is eval-) 86.4 84.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
@@ -10293,92 +10352,86 @@ FrameNoSep
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
 1 11 Q
-1.71 (quence\325s length is added to it. The resulting bounds are clipped to lie between zero and the) 113.4 712.67 P
-0.95 (sequence\325s length, inclusive. Finally, the sequence object is asked to replace the slice with the) 113.4 699.67 P
--0.15 (items of the assigned sequence. The length of the slice may be different from the length of the as-) 113.4 686.67 P
-(signed sequence, thus changing the length of the target sequence, if the object allows it.) 113.4 673.67 T
-0.15 (\050In the current implementation, the syntax for targets is taken to be the same as for expressions, and) 99 648.67 P
-(invalid syntax is rejected during the code generation phase, causing less detailed error messages.\051) 99 635.67 T
-0.14 (WARNING: Although the definition of assignment implies that overlaps between the left-hand side) 99 610.67 P
--0.28 (and the right-hand side are \324safe\325 \050e.g. \324\324) 99 597.67 P
-2 F
--0.68 (a,) 274.49 597.67 P
--0.68 (b) 290.16 597.67 P
--0.68 (=) 299.23 597.67 P
--0.68 (b,) 308.3 597.67 P
--0.68 (a) 323.96 597.67 P
-1 F
--0.28 (\325\325 swaps two variables\051, overlaps) 330.56 597.67 P
+(uated.) 113.4 712.67 T
+-0.11 (If the primary is a mutable sequence object \050a list\051, the subscript must yield a plain integer. If it is) 113.4 695.67 P
+0.31 (negative, the sequence\325s length is added to it. The resulting value must be a nonnegative integer) 113.4 682.67 P
+-0.14 (less than the sequence\325s length, and the sequence is asked to assign the assigned object to its item) 113.4 669.67 P
+0 (with that index. If the index is out of range,) 113.4 656.67 P
+2 F
+0.01 (IndexError) 307.15 656.67 P
+1 F
+0 ( is raised \050assignment to a subscripted) 373.15 656.67 P
+(sequence cannot add new items to a list\051.) 113.4 643.67 T
+-0.4 (If the primary is a mapping \050dictionary\051 object, the subscript must have a type compatible with the) 113.4 626.67 P
+-0.53 (mapping\325s key type, and the mapping is then asked to create a key/datum pair which maps the sub-) 113.4 613.67 P
+0.03 (script to the assigned object. This can either replace an existing key/value pair with the same key) 113.4 600.67 P
+(value, or insert a new key/value pair \050if no key with the same value existed\051.) 113.4 587.67 T
+(\245) 99 568.67 T
+-0.45 (If the target is a slicing: The primary expression in the reference is evaluated. It should yield a mu-) 113.4 568.67 P
+0.68 (table sequence object \050e.g. a list\051. The assigned object should be a sequence object of the same) 113.4 555.67 P
+-0.49 (type. Next, the lower and upper bound expressions are evaluated, insofar they are present; defaults) 113.4 542.67 P
+-0.46 (are zero and the sequence\325s length. The bounds should evaluate to \050small\051 integers. If either bound) 113.4 529.67 P
+0.35 (is negative, the sequence\325s length is added to it. The resulting bounds are clipped to lie between) 113.4 516.67 P
+-0.32 (zero and the sequence\325s length, inclusive. Finally, the sequence object is asked to replace the slice) 113.4 503.67 P
+0.15 (with the items of the assigned sequence. The length of the slice may be different from the length) 113.4 490.67 P
+(of the assigned sequence, thus changing the length of the target sequence, if the object allows it.) 113.4 477.67 T
+0.15 (\050In the current implementation, the syntax for targets is taken to be the same as for expressions, and) 99 452.67 P
+(invalid syntax is rejected during the code generation phase, causing less detailed error messages.\051) 99 439.67 T
+0.14 (WARNING: Although the definition of assignment implies that overlaps between the left-hand side) 99 414.67 P
+-0.28 (and the right-hand side are \324safe\325 \050e.g. \324\324) 99 401.67 P
+2 F
+-0.68 (a,) 274.49 401.67 P
+-0.68 (b) 290.16 401.67 P
+-0.68 (=) 299.23 401.67 P
+-0.68 (b,) 308.3 401.67 P
+-0.68 (a) 323.96 401.67 P
+1 F
+-0.28 (\325\325 swaps two variables\051, overlaps) 330.56 401.67 P
 3 F
--0.28 (within) 477.01 597.67 P
+-0.28 (within) 477.01 401.67 P
 1 F
--0.28 ( the col-) 504.52 597.67 P
--0.19 (lection of assigned-to variables are not safe! For instance, the following program prints \324\324) 99 584.67 P
+-0.28 ( the col-) 504.52 401.67 P
+-0.19 (lection of assigned-to variables are not safe! For instance, the following program prints \324\324) 99 388.67 P
 2 F
--0.46 ([0,) 490.02 584.67 P
--0.46 (2]) 516.42 584.67 P
+-0.46 ([0,) 490.02 388.67 P
+-0.46 (2]) 516.42 388.67 P
 1 F
--0.19 (\325\325:) 529.62 584.67 P
+-0.19 (\325\325:) 529.62 388.67 P
 2 10 Q
-(x = [0, 1]) 99 566.33 T
-(i = 0) 99 554.33 T
-(i, x[i] = 1, 2) 99 542.33 T
-(print x) 99 530.33 T
+(x = [0, 1]) 99 370.33 T
+(i = 0) 99 358.33 T
+(i, x[i] = 1, 2) 99 346.33 T
+(print x) 99 334.33 T
 0 14 Q
-(6.3) 99 503.67 T
-(The) 135 503.67 T
+(6.4) 99 307.67 T
+(The) 135 307.67 T
 2 F
-(pass) 163.78 503.67 T
+(pass) 163.78 307.67 T
 0 F
-( statement) 197.38 503.67 T
+( statement) 197.38 307.67 T
 2 10 Q
-(pass_stmt:      "pass") 99 479.33 T
+(pass_stmt:      "pass") 99 283.33 T
 2 11 Q
-0.21 (pass) 99 454.67 P
+0.21 (pass) 99 258.67 P
 1 F
-0.09 ( is a null operation \321 when it is executed, nothing happens. It is useful as a placeholder when) 125.4 454.67 P
-(a statement is required syntactically, but no code needs to be executed, for example:) 99 441.67 T
+0.09 ( is a null operation \321 when it is executed, nothing happens. It is useful as a placeholder when) 125.4 258.67 P
+(a statement is required syntactically, but no code needs to be executed, for example:) 99 245.67 T
 2 10 Q
-(def f\050arg\051: pass    # a function that does nothing \050yet\051) 99 423.33 T
-(class C: pass       # a class with no methods \050yet\051) 99 411.33 T
+(def f\050arg\051: pass    # a function that does nothing \050yet\051) 99 227.33 T
+(class C: pass       # a class with no methods \050yet\051) 99 215.33 T
 0 14 Q
-(6.4) 99 384.67 T
-(The) 135 384.67 T
+(6.5) 99 188.67 T
+(The) 135 188.67 T
 2 F
-(del) 163.78 384.67 T
+(del) 163.78 188.67 T
 0 F
-( statement) 188.98 384.67 T
+( statement) 188.98 188.67 T
 2 10 Q
-(del_stmt:       "del" target_list) 99 360.33 T
+(del_stmt:       "del" target_list) 99 164.33 T
 1 11 Q
-0.19 (Deletion is recursively defined very similar to the way assignment is defined. Rather that spelling it) 99 335.67 P
-(out in full details, here are some hints.) 99 322.67 T
-(Deletion of a target list recursively deletes each target, from left to right.) 99 297.67 T
-0.41 0.09 (Deletion of a name removes the binding of that name \050which must exist\051 from the local or global) 99 272.67 B
--0 (name space, depending on whether the name occurs in a) 99 259.67 P
-2 F
--0 (global) 349.18 259.67 P
-1 F
--0 ( statement in the same code block.) 388.78 259.67 P
-0.32 (Deletion of attribute references, subscriptions and slicings is passed to the primary object involved;) 99 234.67 P
--0.54 (deletion of a slicing is in general equivalent to assignment of an empty slice of the right type \050but even) 99 221.67 P
-(this is determined by the sliced object\051.) 99 208.67 T
-0 14 Q
-(6.5) 99 181.67 T
-(The) 135 181.67 T
-2 F
-(print) 163.78 181.67 T
-0 F
-( statement) 205.78 181.67 T
-2 10 Q
-(print_stmt:     "print" [ expression \050"," expression\051* [","] ]) 99 157.33 T
-2 11 Q
-0.81 (print) 99 132.67 P
-1 F
-0.34 ( evaluates each expression in turn and writes the resulting object to standard output \050see be-) 132 132.67 P
--0.02 (low\051. If an object is not a string, it is first converted to a string using the rules for string conversions.) 99 119.67 P
-0.32 (The \050resulting or original\051 string is then written. A space is written before each object is \050converted) 99 106.67 P
-0.23 (and\051 written, unless the output system believes it is positioned at the beginning of a line. This is the) 99 93.67 P
+0.19 (Deletion is recursively defined very similar to the way assignment is defined. Rather that spelling it) 99 139.67 P
+(out in full details, here are some hints.) 99 126.67 T
+(Deletion of a target list recursively deletes each target, from left to right.) 99 101.67 T
 0 0 0 1 0 0 0 K
 FMENDPAGE
 %%EndPage: "41" 47
@@ -10409,237 +10462,202 @@ FrameNoSep
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--0.27 (case: \0501\051 when no characters have yet been written to standard output; or \0502\051 when the last character written) 72 712.67 P
+0.41 0.08 (Deletion of a name removes the binding of that name \050which must exist\051 from the local or global name) 72 712.67 B
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.41 0.02 (to standard output is) 72 699.67 B
-2 F
-0.99 0.02 (\134n) 166.45 699.67 B
-1 F
-0.41 0.02 (; or \0503\051 when the last write operation on standard output was not a) 179.7 699.67 B
+(space, depending on whether the name occurs in a) 72 699.67 T
 2 F
-0.99 0.02 (print) 479.77 699.67 B
+(global) 295.61 699.67 T
 1 F
-0.41 0.02 ( state-) 512.89 699.67 B
+( statement in the same code block.) 335.21 699.67 T
 0 0 0 1 0 0 0 K
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-(ment. \050In some cases it may be functional to write an empty string to standard output for this reason.\051) 72 686.67 T
+-0.51 (Deletion of attribute references, subscriptions and slicings is passed to the primary object involved; deletion) 72 674.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0.36 (A) 72 661.67 P
-2 F
-0.87 ("\134n") 83.05 661.67 P
-1 F
-0.36 ( character is written at the end, unless the) 109.45 661.67 P
-2 F
-0.87 (print) 297.21 661.67 P
-1 F
-0.36 ( statement ends with a comma. This is the only) 330.21 661.67 P
+-0.1 (of a slicing is in general equivalent to assignment of an empty slice of the right type \050but even this is deter-) 72 661.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
--0.54 (action if the statement contains just the keyword) 72 648.67 P
-2 F
--1.3 (print) 283.36 648.67 P
-1 F
--0.54 (. Standard output is defined as the file object named) 316.36 648.67 P
+(mined by the sliced object\051.) 72 648.67 T
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+0 14 Q
+(6.6) 72 621.67 T
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+(The) 108 621.67 T
 2 F
--0.69 (stdout) 72 635.67 P
-1 F
--0.29 (in the built-in module) 117.5 635.67 P
-2 F
--0.69 (sys) 214.74 635.67 P
-1 F
--0.29 (. If no such object exists, or if it is not a writable file, a) 234.54 635.67 P
-2 F
--0.69 (RuntimeEr-) 474 635.67 P
+(print) 136.78 621.67 T
+0 F
+( statement) 178.78 621.67 T
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 0 0 0 1 0 0 0 K
-0.99 0 (ror) 72 622.67 B
-1 F
-0.41 0 ( exception is raised. \050The original implementation attempts to write to the system\325s original standard) 91.81 622.67 B
+2 10 Q
+(print_stmt:     "print" [ expression \050"," expression\051* [","] ]) 72 597.33 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(output instead, but this is not safe, and should be fixed.\051) 72 609.67 T
+2 11 Q
+0.41 (print) 72 572.67 P
+1 F
+0.17 ( evaluates each expression in turn and writes the resulting object to standard output \050see below\051. If) 105 572.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-0 14 Q
-(6.6) 72 582.67 T
+-0.13 (an object is not a string, it is first converted to a string using the rules for string conversions. The \050resulting) 72 559.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(The) 108 582.67 T
-2 F
-(return) 136.78 582.67 T
-0 F
-( statement) 187.18 582.67 T
+-0.48 (or original\051 string is then written. A space is written before each object is \050converted and\051 written, unless the) 72 546.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-2 10 Q
-(return_stmt:    "return" [expression_list]) 72 558.33 T
+0.41 0.01 (output system believes it is positioned at the beginning of a line. This is the case: \0501\051 when no characters) 72 533.67 B
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-2 11 Q
-(return) 72 533.67 T
+-0 (have yet been written to standard output; or \0502\051 when the last character written to standard output is) 72 520.67 P
+2 F
+-0.01 (\134n) 511.83 520.67 P
 1 F
-( may only occur syntactically nested in a function definition, not within a nested class definition.) 111.6 533.67 T
+-0 (; or) 525.03 520.67 P
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
-(If an expression list is present, it is evaluated, else) 72 508.67 T
+0.06 (\0503\051 when the last write operation on standard output was not a) 72 507.67 P
 2 F
-(None) 295.02 508.67 T
+0.15 (print) 347.7 507.67 P
 1 F
-(is substituted.) 328.02 508.67 T
+0.06 ( statement. \050In some cases it may be) 380.7 507.67 P
+0 0 0 1 0 0 0 K
+0 0 0 1 0 0 0 K
+(functional to write an empty string to standard output for this reason.\051) 72 494.67 T
 0 0 0 1 0 0 0 K
 0 0 0 1 0 0 0 K
+0.36 (A) 72 469.67 P
 2 F
-(return) 72 483.67 T
+0.87 ("\134n") 83.05 469.67 P
 1 F
-( leaves the current function call with the expression list \050or) 111.6 483.67 T
+0.36 ( character is written at the end, unless the) 109.45 469.67 P
 2 F
-(None) 372.81 483.67 T
+0.87 (print) 297.21 469.67 P
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-(\051 as return value.) 399.21 483.67 T
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