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prosodic

Prosodic 2: a metrical-phonological parser, written in Python. For English and Finnish, with flexible language support.

2.1.2
PyPI

Maintainers: 1

Prosodic

Prosodic is a metrical-phonological parser written in Python. Currently, it can parse English and Finnish text, but adding additional languages is easy with a pronunciation dictionary or a custom python function. Prosodic was built by Ryan Heuser, Josh Falk, and Arto Anttila. Josh also maintains another repository, in which he has rewritten the part of this project that does phonetic transcription for English and Finnish. Sam Bowman has contributed to the codebase as well, adding several new metrical constraints.

This version, Prosodic 2.x, is a near-total rewrite of the original Prosodic.

Supports Python>=3.9.

Demo

You can view and use a web app demo of the current Prosodic app at prosodic.dev.

Install

1. Install python package

Install from pypi:

pip install prosodic

2. Install espeak

Install espeak, free text-to-speak (TTS) software, to ‘sound out’ unknown words.

Mac: brew install espeak. (First install homebrew if not already installed.)
Linux: apt-get install espeak libespeak1 libespeak-dev
Windows: Download and install from github

Usage

Web app

Prosodic has a new GUI (graphical user interface) in a web app. After installing, run:

prosodic web

Then navigate to http://127.0.0.1:8181/. It should look like this:

Python

Read texts

# import prosodic
import prosodic

# load a text
sonnet = prosodic.Text("""
Those hours, that with gentle work did frame
The lovely gaze where every eye doth dwell,
Will play the tyrants to the very same
And that unfair which fairly doth excel;
For never-resting time leads summer on
To hideous winter, and confounds him there;
Sap checked with frost, and lusty leaves quite gone,
Beauty o’er-snowed and bareness every where:
Then were not summer’s distillation left,
A liquid prisoner pent in walls of glass,
Beauty’s effect with beauty were bereft,
Nor it, nor no remembrance what it was:
But flowers distill’d, though they with winter meet,
Leese but their show; their substance still lives sweet.
""")

# can also load by filename
shaksonnets = prosodic.Text(fn='corpora/corppoetry_en/en.shakespeare.txt')

Stanzas, lines, words, syllables, phonemes

Texts in prosodic are organized into a tree structure. The .children of a Text object is a list of Stanza's, whose .parent objects point back to the Text. In turn, in each stanza's .children is a list of Line's, whose .parent's point back to the stanza; so on down the tree.

# Take a peek at this tree structure 
# and the features particular entities have
sonnet.show(maxlines=30, incl_phons=True)

Text()
|   Stanza(num=1)
|       Line(num=1, txt='Those hours, that with gentle work did frame')
|           WordToken(num=1, txt='Those', sent_num=1, sentpart_num=1)
|               WordType(num=1, txt='Those', lang='en', num_forms=1)
|                   WordForm(num=1, txt='Those')
|                       Syllable(ipa='ðoʊz', num=1, txt='Those', is_stressed=False, is_heavy=True)
|                           Phoneme(num=1, txt='ð', syl=-1, son=-1, cons=1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=1, cor=1, distr=1, lab=-1, hi=-1, lo=-1, back=-1, round=-1, velaric=-1, tense=0, long=-1, hitone=0, hireg=0)
|                           Phoneme(num=3, txt='o', syl=1, son=1, cons=-1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=0, cor=-1, distr=0, lab=-1, hi=-1, lo=-1, back=1, round=1, velaric=-1, tense=1, long=-1, hitone=0, hireg=0)
|                           Phoneme(num=3, txt='ʊ', syl=1, son=1, cons=-1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=0, cor=-1, distr=0, lab=-1, hi=1, lo=-1, back=1, round=1, velaric=-1, tense=-1, long=-1, hitone=0, hireg=0)
|                           Phoneme(num=4, txt='z', syl=-1, son=-1, cons=1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=1, cor=1, distr=-1, lab=-1, hi=-1, lo=-1, back=-1, round=-1, velaric=-1, tense=0, long=-1, hitone=0, hireg=0)
|           WordToken(num=2, txt=' hours', sent_num=1, sentpart_num=1)
|               WordType(num=1, txt='hours', lang='en', num_forms=2)
|                   WordForm(num=1, txt='hours')
|                       Syllable(ipa="'aʊ", num=1, txt='ho', is_stressed=True, is_heavy=True, is_strong=True, is_weak=False)
|                           Phoneme(num=2, txt='a', syl=1, son=1, cons=-1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=0, cor=-1, distr=0, lab=-1, hi=-1, lo=1, back=-1, round=-1, velaric=-1, tense=1, long=-1, hitone=0, hireg=0)
|                           Phoneme(num=3, txt='ʊ', syl=1, son=1, cons=-1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=0, cor=-1, distr=0, lab=-1, hi=1, lo=-1, back=1, round=1, velaric=-1, tense=-1, long=-1, hitone=0, hireg=0)
|                       Syllable(ipa='ɛːz', num=2, txt='urs', is_stressed=False, is_heavy=True, is_strong=False, is_weak=True)
|                           Phoneme(num=2, txt='ɛː', syl=1, son=1, cons=-1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=0, cor=-1, distr=0, lab=-1, hi=-1, lo=-1, back=-1, round=-1, velaric=-1, tense=-1, long=1, hitone=0, hireg=0)
|                           Phoneme(num=4, txt='z', syl=-1, son=-1, cons=1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=1, cor=1, distr=-1, lab=-1, hi=-1, lo=-1, back=-1, round=-1, velaric=-1, tense=0, long=-1, hitone=0, hireg=0)
|                   WordForm(num=2, txt='hours')
|                       Syllable(ipa="'aʊrz", num=1, txt='hours', is_stressed=True, is_heavy=True)
|                           Phoneme(num=2, txt='a', syl=1, son=1, cons=-1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=0, cor=-1, distr=0, lab=-1, hi=-1, lo=1, back=-1, round=-1, velaric=-1, tense=1, long=-1, hitone=0, hireg=0)
|                           Phoneme(num=3, txt='ʊ', syl=1, son=1, cons=-1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=0, cor=-1, distr=0, lab=-1, hi=1, lo=-1, back=1, round=1, velaric=-1, tense=-1, long=-1, hitone=0, hireg=0)
|                           Phoneme(num=4, txt='r', syl=-1, son=1, cons=1, cont=1, delrel=0, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=1, cor=1, distr=-1, lab=-1, hi=0, lo=0, back=0, round=-1, velaric=-1, tense=0, long=-1, hitone=0, hireg=0)
|                           Phoneme(num=4, txt='z', syl=-1, son=-1, cons=1, cont=1, delrel=-1, lat=-1, nas=-1, strid=0, voi=1, sg=-1, cg=-1, ant=1, cor=1, distr=-1, lab=-1, hi=-1, lo=-1, back=-1, round=-1, velaric=-1, tense=0, long=-1, hitone=0, hireg=0)
|           WordToken(num=3, txt=',', sent_num=1, sentpart_num=1)
|               WordType(num=1, txt=',', lang='en', num_forms=0, is_punc=True)
|           WordToken(num=4, txt=' that', sent_num=1, sentpart_num=1)
|               WordType(num=1, txt='that', lang='en', num_forms=3)

# take a peek at it in dataframe form
sonnet.df   # by-syllable dataframe representation
sonnet      # ...which will also be shown when text object displayed (in a notebook)

												word_num_forms	syll_is_stressed	syll_is_heavy	syll_is_strong	syll_is_weak
stanza_num	line_num	line_txt	sent_num	sentpart_num	wordtoken_num	wordtoken_txt	word_lang	wordform_num	syll_num	syll_txt	syll_ipa
1	1	Those hours, that with gentle work did frame	1	1	1	Those	en	1	1	Those	ðoʊz	1	0	1
2	hours	en	1	1	ho	'aʊ	2	1	1	1	0
2	urs	ɛːz	2	0	1	0	1
2	1	hours	'aʊrz	2	1	1
3	,	en	0	0			0					1
...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...
14	Leese but their show; their substance still lives sweet.	1	1	7	substance	en	1	2	tance	stəns	1	0	1	0	1
8	still	en	1	1	still	'stɪl	1	1	1
9	lives	en	1	1	lives	'lɪvz	1	1	1
10	sweet	en	1	1	sweet	'swiːt	1	1	1
11	.	en	0	0			0					1

195 rows × 6 columns

# you can loop over this directly if you want
for stanza in shaksonnets.stanzas:
    for line in sonnet:
        for wordtoken in line:
            for wordtype in wordtoken:
                for wordform in wordtype:
                    for syllable in wordform:
                        for phoneme in syllable:
                            # ...
                            pass

# or directly access components
print(f'''
Shakespeare's sonnets have:
  * {len(shaksonnets.stanzas):,} "stanzas"        (in this text, each one a sonnet)
  * {len(shaksonnets.lines):,} lines
  * {len(shaksonnets.wordtokens):,} wordtokens    (including punctuation)
  * {len(shaksonnets.wordtypes):,} wordtypes     (each token has one wordtype object)
  * {len(shaksonnets.wordforms):,} wordforms     (a word + IPA pronunciation; no punctuation)
  * {len(shaksonnets.syllables):,} syllables
  * {len(shaksonnets.phonemes):,} phonemes
''')

Shakespeare's sonnets have:
  * 154 "stanzas"        (in this text, each one a sonnet)
  * 2,155 lines
  * 20,317 wordtokens    (including punctuation)
  * 20,317 wordtypes     (each token has one wordtype object)
  * 17,601 wordforms     (a word + IPA pronunciation; no punctuation)
  * 21,915 syllables
  * 63,614 phonemes

# access lines

# text.line{num} will return text.lines[num-1]
assert sonnet.line1 is sonnet.lines[0]
assert sonnet.line10 is sonnet.lines[9]

# show the line
sonnet.line1

											word_num_forms	syll_is_stressed	syll_is_heavy
line_num	line_txt	sent_num	sentpart_num	wordtoken_num	wordtoken_txt	word_lang	wordform_num	syll_num	syll_txt	syll_ipa
1	Those hours, that with gentle work did frame	1	1	1	Those	en	1	1	Those	ðoʊz	1	0	1
2	hours	en	1	1	ho	'aʊ	2	1	1	1	0
2	urs	ɛːz	2	0	1	0	1
2	1	hours	'aʊrz	2	1	1
3	,	en	0	0			0					1
...	...	...	...	...	...	...	...	...	...	...	...	...
6	gentle	en	1	2	tle	təl	1	0	1	0	1
7	work	en	1	1	work	'wɛːk	1	1	1
8	did	en	1	1	did	dɪd	2	0	1
2	1	did	'dɪd	2	1	1
9	frame	en	1	1	frame	'freɪm	1	1	1

15 rows × 6 columns

# build lines directly
line_from_richardIII = prosodic.Line('A horse, a horse, my kingdom for a horse!')
line_from_richardIII

[34m[1mtokenizing[0m[36m @ 2023-12-15 14:14:17,991[0m
[34m[1m⎿ 0 seconds[0m[36m @ 2023-12-15 14:14:17,992[0m

										word_num_forms	syll_is_stressed	syll_is_heavy
line_txt	sent_num	sentpart_num	wordtoken_num	wordtoken_txt	word_lang	wordform_num	syll_num	syll_txt	syll_ipa
A horse, a horse, my kingdom for a horse!	1	1	1	A	en	1	1	A	eɪ	1	0	1
2	horse	en	1	1	horse	'hɔːrs	1	1	1
3	,	en	0	0			0			1
4	a	en	1	1	a	eɪ	1	0	1
5	horse	en	1	1	horse	'hɔːrs	1	1	1
...	...	...	...	...	...	...	...	...	...	...	...	...
8	kingdom	en	1	2	dom	dəm	1	0	1		0	1
9	for	en	1	1	for	fɔːr	1	0	1
10	a	en	1	1	a	eɪ	1	0	1
11	horse	en	1	1	horse	'hɔːrs	1	1	1
12	!	en	0	0			0			1

13 rows × 6 columns

Metrical parsing

Parsing lines

# parse with default options by just reaching for best parse
plausible_parses = line_from_richardIII.parse()
plausible_parses

					parse_score	parse_is_bounded	meterpos_num_slots	*w_peak	*w_stress	*s_unstress	*unres_across	*unres_within
line_txt	parse_rank	parse_txt	parse_meter	parse_stress
A horse, a horse, my kingdom for a horse!	1	a HORSE a HORSE my KING dom FOR a HORSE	-+-+-+-+-+	-+-+-+---+	1.0	0.0	10	0	0	1	0	0

# see best parse
line_from_richardIII.best_parse

A horse a horse my kingdom for a horse

⎿ Parse(rank=1, meter='-+-+-+-+-+', stress='-+-+-+---+', score=1, is_bounded=0)

# parse with different options
diff_parses = line_from_richardIII.parse(constraints=('w_peak','s_unstress'))
diff_parses

					parse_score	parse_is_bounded	meterpos_num_slots	*w_peak	*s_unstress
line_txt	parse_rank	parse_txt	parse_meter	parse_stress
A horse, a horse, my kingdom for a horse!	1	a HORSE a HORSE my KING dom FOR a HORSE	-+-+-+-+-+	-+-+-+---+	1.0	0.0	10	0	1
2	a HORSE a HORSE my KING dom FOR a.horse	-+-+-+-+--	-+-+-+---+	1.0	0.0	12	0	1
3	a HORSE a HORSE my KING dom.for A horse	-+-+-+--+-	-+-+-+---+	1.0	0.0	12	0	1
4	a HORSE a HORSE my KING dom.for A.HORSE	-+-+-+--++	-+-+-+---+	1.0	0.0	14	0	1
5	a HORSE a HORSE my KING.DOM for.a HORSE	-+-+-++--+	-+-+-+---+	1.0	0.0	14	0	1
6	a HORSE a HORSE my KING dom FOR.A horse	-+-+-+-++-	-+-+-+---+	2.0	0.0	12	0	2

Parsing texts

# small texts
sonnet.parse()

[34m[1mparsing 14 lines [5x][0m[36m @ 2023-12-15 14:17:43,563[0m
[1;34m￨ stanza 01, line 14: LEESE but.their SHOW their SUBS tance STILL lives SWEET: 100%|[0;36m██████████[0;36m| 14/14 [00:00<00:00, 45.78it/s]
[34m[1m⎿ 0.3 seconds[0m[36m @ 2023-12-15 14:17:43,873[0m

							parse_score	parse_is_bounded	meterpos_num_slots	*w_peak	*w_stress	*s_unstress	*unres_across	*unres_within
stanza_num	line_num	line_txt	parse_rank	parse_txt	parse_meter	parse_stress
1	1	Those hours, that with gentle work did frame	1	those HO urs THAT with GEN tle WORK did FRAME	-+-+-+-+-+	-+-+-+-+-+	0.0	0.0	10	0	0	0	0	0
2	those HOURS that.with GEN tle WORK did FRAME	-+--+-+-+	-+--+-+-+	0.0	0.0	11	0	0	0	0	0
3	those HOURS that.with GEN tle WORK did FRAME	-+--+-+-+	-+--+-+-+	0.0	0.0	11	0	0	0	0	0
2	The lovely gaze where every eye doth dwell,	1	the LO vely GAZE where E very EYE doth DWELL	-+-+-+-+-+	-+-+-+-+-+	0.0	0.0	10	0	0	0	0	0
2	the LO vely GAZE where E ve.ry EYE doth DWELL	-+-+-+--+-+	-+-+-+--+-+	1.0	0.0	13	0	0	0	0	1
...	...	...	...	...	...	...	...	...	...	...	...	...	...
13	But flowers distill'd, though they with winter meet,	1	but FLO wers DIS.TILL'D though THEY with WIN ter MEET	-+-++-+-+-+	-+--+-+-+-+	2.0	0.0	13	0	0	1	0	1
2	but FLO wers.dis TILL'D though THEY with WIN ter MEET	-+--+-+-+-+	-+--+-+-+-+	2.0	0.0	13	0	0	0	2	0
3	but FLO.WERS dis TILL'D though THEY with WIN ter MEET	-++-+-+-+-+	-+--+-+-+-+	2.0	0.0	13	0	0	1	0	1
4	but FLO wers DIS till'd THOUGH they.with WIN ter MEET	-+-+-+--+-+	-+--+---+-+	4.0	0.0	13	1	1	2	0	0
14	Leese but their show; their substance still lives sweet.	1	LEESE but.their SHOW their SUBS tance STILL lives SWEET	+--+-+-+-+	+--+-+-+++	1.0	0.0	12	0	1	0	0	0

37 rows × 8 columns

# and big texts
shaksonnets.parse()

[34m[1mparsing 2155 lines [5x][0m[36m @ 2023-12-15 14:17:52,124[0m
[1;34m￨ stanza 154, line 14: love's FI re HEATS.WA ter WA ter COOLS not LOVE       : 100%|[0;36m██████████[0;36m| 2155/2155 [00:56<00:00, 38.03it/s]
[34m[1m⎿ 57.4 seconds[0m[36m @ 2023-12-15 14:18:49,496[0m

							parse_score	parse_is_bounded	meterpos_num_slots	*w_peak	*w_stress	*s_unstress	*unres_across	*unres_within
stanza_num	line_num	line_txt	parse_rank	parse_txt	parse_meter	parse_stress
1	1	FROM fairest creatures we desire increase,	1	from FAI rest CREA tures WE de SIRE in CREASE	-+-+-+-+-+	-+-+-+-+-+	0.0	0.0	10	0	0	0	0	0
2	from FAI rest CREA tures WE de SI re IN crease	-+-+-+-+-+-	-+-+-+-+-++	1.0	0.0	11	0	1	0	0	0
3	from FAI rest CREA tures WE de SI re IN.CREASE	-+-+-+-+-++	-+-+-+-+-++	1.0	0.0	13	0	0	0	0	1
4	from FAI rest CREA tures WE de SI re.in CREASE	-+-+-+-+--+	-+-+-+-+--+	2.0	0.0	13	0	0	0	2	0
2	That thereby beauty's rose might never die,	1	that THE reby BEA uty's ROSE might NE ver DIE	-+-+-+-+-+	-+++-+-+-+	1.0	0.0	10	0	1	0	0	0
...	...	...	...	...	...	...	...	...	...	...	...	...	...	...
154	14	Love's fire heats water, water cools not love.	2	love's FI re HEATS wa.ter WA ter COOLS not LOVE	-+-+--+-+-+	++-++-+-+-+	4.0	0.0	13	1	2	0	0	1
3	love's FI.RE heats WA ter WA ter COOLS not LOVE	-++-+-+-+-+	++-++-+-+-+	4.0	0.0	13	0	2	1	0	1
4	LOVE'S fire HEATS wa.ter WA ter COOLS not LOVE	+-+--+-+-+	++++-+-+-+	4.0	0.0	12	1	2	0	0	1
5	LOVE'S.FI re HEATS.WA ter WA ter COOLS not LOVE	++-++-+-+-+	++-++-+-+-+	4.0	0.0	15	0	0	0	4	0
6	love's FI re HEATS wa TER wa TER cools NOT love	-+-+-+-+-+-	++-++-+-+++	9.0	0.0	11	2	5	2	0	0

7277 rows × 8 columns

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