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authorGeorg Brandl <georg@python.org>2009-10-27 20:19:02 +0000
committerGeorg Brandl <georg@python.org>2009-10-27 20:19:02 +0000
commit22fff4363324c408b13761e5ccc5e318797fdc30 (patch)
treeca1ad7048b9cdffc0d23bb8b50224ef6180f96f4 /Demo/scripts/morse.py
parent7dc008d001ef3037d0634ba4c5bcb5631d4ec0ce (diff)
downloadcpython-git-22fff4363324c408b13761e5ccc5e318797fdc30.tar.gz
Merged revisions 74609,74627,74634,74645,74651,74738,74840,75016,75316-75317,75323-75324,75326,75328,75330,75338,75340-75341,75343,75352-75353,75355,75357,75359 via svnmerge from
svn+ssh://svn.python.org/python/branches/py3k ................ r74609 | senthil.kumaran | 2009-08-31 18:43:45 +0200 (Mo, 31 Aug 2009) | 3 lines Doc fix for issue2637. ................ r74627 | georg.brandl | 2009-09-02 22:31:26 +0200 (Mi, 02 Sep 2009) | 1 line #6819: fix typo. ................ r74634 | georg.brandl | 2009-09-03 14:34:10 +0200 (Do, 03 Sep 2009) | 9 lines Merged revisions 74633 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r74633 | georg.brandl | 2009-09-03 14:31:39 +0200 (Do, 03 Sep 2009) | 1 line #6757: complete the list of types that marshal can serialize. ........ ................ r74645 | georg.brandl | 2009-09-04 10:07:32 +0200 (Fr, 04 Sep 2009) | 1 line #5221: fix related topics: SEQUENCEMETHODS[12] doesnt exist any more. ................ r74651 | georg.brandl | 2009-09-04 13:20:54 +0200 (Fr, 04 Sep 2009) | 9 lines Recorded merge of revisions 74650 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r74650 | georg.brandl | 2009-09-04 13:19:34 +0200 (Fr, 04 Sep 2009) | 1 line #5101: add back tests to test_funcattrs that were lost during unittest conversion, and make some PEP8 cleanups. ........ ................ r74738 | georg.brandl | 2009-09-09 18:51:05 +0200 (Mi, 09 Sep 2009) | 9 lines Merged revisions 74737 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r74737 | georg.brandl | 2009-09-09 18:49:13 +0200 (Mi, 09 Sep 2009) | 1 line Properly document copy and deepcopy as functions. ........ ................ r74840 | georg.brandl | 2009-09-16 18:40:45 +0200 (Mi, 16 Sep 2009) | 13 lines Merged revisions 74838-74839 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r74838 | georg.brandl | 2009-09-16 18:22:12 +0200 (Mi, 16 Sep 2009) | 1 line Remove some more boilerplate from the actual tests in test_pdb. ........ r74839 | georg.brandl | 2009-09-16 18:36:39 +0200 (Mi, 16 Sep 2009) | 1 line Make the pdb displayhook compatible with the standard displayhook: do not print Nones. Add a test for that. ........ ................ r75016 | georg.brandl | 2009-09-22 15:53:14 +0200 (Di, 22 Sep 2009) | 1 line #6969: make it explicit that configparser writes/reads text files, and fix the example. ................ r75316 | georg.brandl | 2009-10-10 23:12:35 +0200 (Sa, 10 Okt 2009) | 9 lines Merged revisions 75313 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75313 | georg.brandl | 2009-10-10 23:07:35 +0200 (Sa, 10 Okt 2009) | 1 line Bring old demo up-to-date. ........ ................ r75317 | georg.brandl | 2009-10-10 23:13:21 +0200 (Sa, 10 Okt 2009) | 9 lines Merged revisions 75315 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75315 | georg.brandl | 2009-10-10 23:10:05 +0200 (Sa, 10 Okt 2009) | 1 line Remove unneeded "L" suffixes. ........ ................ r75323 | georg.brandl | 2009-10-10 23:48:05 +0200 (Sa, 10 Okt 2009) | 9 lines Recorded merge of revisions 75321 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75321 | georg.brandl | 2009-10-10 23:43:21 +0200 (Sa, 10 Okt 2009) | 1 line Remove outdated comment and fix a few style issues. ........ ................ r75324 | georg.brandl | 2009-10-10 23:49:24 +0200 (Sa, 10 Okt 2009) | 9 lines Merged revisions 75322 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75322 | georg.brandl | 2009-10-10 23:47:31 +0200 (Sa, 10 Okt 2009) | 1 line Show use of range() step argument nicely. ........ ................ r75326 | georg.brandl | 2009-10-10 23:57:03 +0200 (Sa, 10 Okt 2009) | 9 lines Merged revisions 75325 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75325 | georg.brandl | 2009-10-10 23:55:11 +0200 (Sa, 10 Okt 2009) | 1 line Modernize factorisation demo (mostly augassign.) ........ ................ r75328 | georg.brandl | 2009-10-11 00:05:26 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75327 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75327 | georg.brandl | 2009-10-11 00:03:43 +0200 (So, 11 Okt 2009) | 1 line Style fixes. ........ ................ r75330 | georg.brandl | 2009-10-11 00:32:28 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75329 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75329 | georg.brandl | 2009-10-11 00:26:45 +0200 (So, 11 Okt 2009) | 1 line Modernize all around (dont ask me how useful that script is nowadays...) ........ ................ r75338 | georg.brandl | 2009-10-11 10:31:41 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75337 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75337 | georg.brandl | 2009-10-11 10:18:44 +0200 (So, 11 Okt 2009) | 1 line Update morse script, avoid globals, use iterators. ........ ................ r75340 | georg.brandl | 2009-10-11 10:42:09 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75339 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75339 | georg.brandl | 2009-10-11 10:39:16 +0200 (So, 11 Okt 2009) | 1 line Update markov demo. ........ ................ r75341 | georg.brandl | 2009-10-11 10:43:08 +0200 (So, 11 Okt 2009) | 1 line Fix README description. ................ r75343 | georg.brandl | 2009-10-11 10:46:56 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75342 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75342 | georg.brandl | 2009-10-11 10:45:03 +0200 (So, 11 Okt 2009) | 1 line Remove useless script "mkrcs" and update README. ........ ................ r75352 | georg.brandl | 2009-10-11 14:04:10 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75350 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75350 | georg.brandl | 2009-10-11 14:00:18 +0200 (So, 11 Okt 2009) | 1 line Use getopt in script.py demo. ........ ................ r75353 | georg.brandl | 2009-10-11 14:04:40 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75351 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75351 | georg.brandl | 2009-10-11 14:03:01 +0200 (So, 11 Okt 2009) | 1 line Fix variable. ........ ................ r75355 | georg.brandl | 2009-10-11 16:27:51 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75354 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75354 | georg.brandl | 2009-10-11 16:23:49 +0200 (So, 11 Okt 2009) | 1 line Update lpwatch script. ........ ................ r75357 | georg.brandl | 2009-10-11 16:50:57 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75356 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75356 | georg.brandl | 2009-10-11 16:49:37 +0200 (So, 11 Okt 2009) | 1 line Remove ftpstats script, the daemon whose log files it reads is long gone. ........ ................ r75359 | georg.brandl | 2009-10-11 17:56:06 +0200 (So, 11 Okt 2009) | 9 lines Merged revisions 75358 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r75358 | georg.brandl | 2009-10-11 17:06:44 +0200 (So, 11 Okt 2009) | 1 line Overhaul of Demo/xml. ........ ................
Diffstat (limited to 'Demo/scripts/morse.py')
-rwxr-xr-xDemo/scripts/morse.py128
1 files changed, 128 insertions, 0 deletions
diff --git a/Demo/scripts/morse.py b/Demo/scripts/morse.py
new file mode 100755
index 0000000000..5aacaa1e78
--- /dev/null
+++ b/Demo/scripts/morse.py
@@ -0,0 +1,128 @@
+#! /usr/bin/env python
+
+# DAH should be three DOTs.
+# Space between DOTs and DAHs should be one DOT.
+# Space between two letters should be one DAH.
+# Space between two words should be DOT DAH DAH.
+
+import sys, math, aifc
+from contextlib import closing
+
+DOT = 30
+DAH = 3 * DOT
+OCTAVE = 2 # 1 == 441 Hz, 2 == 882 Hz, ...
+
+morsetab = {
+ 'A': '.-', 'a': '.-',
+ 'B': '-...', 'b': '-...',
+ 'C': '-.-.', 'c': '-.-.',
+ 'D': '-..', 'd': '-..',
+ 'E': '.', 'e': '.',
+ 'F': '..-.', 'f': '..-.',
+ 'G': '--.', 'g': '--.',
+ 'H': '....', 'h': '....',
+ 'I': '..', 'i': '..',
+ 'J': '.---', 'j': '.---',
+ 'K': '-.-', 'k': '-.-',
+ 'L': '.-..', 'l': '.-..',
+ 'M': '--', 'm': '--',
+ 'N': '-.', 'n': '-.',
+ 'O': '---', 'o': '---',
+ 'P': '.--.', 'p': '.--.',
+ 'Q': '--.-', 'q': '--.-',
+ 'R': '.-.', 'r': '.-.',
+ 'S': '...', 's': '...',
+ 'T': '-', 't': '-',
+ 'U': '..-', 'u': '..-',
+ 'V': '...-', 'v': '...-',
+ 'W': '.--', 'w': '.--',
+ 'X': '-..-', 'x': '-..-',
+ 'Y': '-.--', 'y': '-.--',
+ 'Z': '--..', 'z': '--..',
+ '0': '-----', ',': '--..--',
+ '1': '.----', '.': '.-.-.-',
+ '2': '..---', '?': '..--..',
+ '3': '...--', ';': '-.-.-.',
+ '4': '....-', ':': '---...',
+ '5': '.....', "'": '.----.',
+ '6': '-....', '-': '-....-',
+ '7': '--...', '/': '-..-.',
+ '8': '---..', '(': '-.--.-',
+ '9': '----.', ')': '-.--.-',
+ ' ': ' ', '_': '..--.-',
+}
+
+nowave = b'\0' * 200
+
+# If we play at 44.1 kHz (which we do), then if we produce one sine
+# wave in 100 samples, we get a tone of 441 Hz. If we produce two
+# sine waves in these 100 samples, we get a tone of 882 Hz. 882 Hz
+# appears to be a nice one for playing morse code.
+def mkwave(octave):
+ sinewave = bytearray()
+ for i in range(100):
+ val = int(math.sin(math.pi * i * octave / 50.0) * 30000)
+ sinewave.extend([(val >> 8) & 255, val & 255])
+ return bytes(sinewave)
+
+defaultwave = mkwave(OCTAVE)
+
+def main():
+ import getopt
+ try:
+ opts, args = getopt.getopt(sys.argv[1:], 'o:p:')
+ except getopt.error:
+ sys.stderr.write('Usage ' + sys.argv[0] +
+ ' [ -o outfile ] [ -p octave ] [ words ] ...\n')
+ sys.exit(1)
+ wave = defaultwave
+ outfile = 'morse.aifc'
+ for o, a in opts:
+ if o == '-o':
+ outfile = a
+ if o == '-p':
+ wave = mkwave(int(a))
+ with closing(aifc.open(outfile, 'w')) as fp:
+ fp.setframerate(44100)
+ fp.setsampwidth(2)
+ fp.setnchannels(1)
+ if args:
+ source = [' '.join(args)]
+ else:
+ source = iter(sys.stdin.readline, '')
+ for line in source:
+ mline = morse(line)
+ play(mline, fp, wave)
+
+# Convert a string to morse code with \001 between the characters in
+# the string.
+def morse(line):
+ res = ''
+ for c in line:
+ try:
+ res += morsetab[c] + '\001'
+ except KeyError:
+ pass
+ return res
+
+# Play a line of morse code.
+def play(line, fp, wave):
+ for c in line:
+ if c == '.':
+ sine(fp, DOT, wave)
+ elif c == '-':
+ sine(fp, DAH, wave)
+ else: # space
+ pause(fp, DAH + DOT)
+ pause(fp, DOT)
+
+def sine(fp, length, wave):
+ for i in range(length):
+ fp.writeframesraw(wave)
+
+def pause(fp, length):
+ for i in range(length):
+ fp.writeframesraw(nowave)
+
+if __name__ == '__main__':
+ main()
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