Created
October 5, 2012 14:00
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Find how many "moneybag months" there are since 1900
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| #!/usr/bin/env python | |
| from calendar import monthrange | |
| from datetime import date | |
| def month_has_31(yr, mth): | |
| """ | |
| Does the month have 31 days? | |
| """ | |
| return monthrange(yr, mth)[1] == 31 | |
| def is_monday(yr, mth, day): | |
| """ | |
| Is this date a monday | |
| """ | |
| return date(yr, mth, day).weekday() == 0 | |
| def main(): | |
| moneybags_months = [] | |
| # all months from 1900 | |
| for yr in range(1900, 2013): | |
| for mth in range(1, 13): | |
| if month_has_31(yr, mth) and is_monday(yr, mth, 1): | |
| moneybags_months.append((yr, mth)) | |
| print "Found %s months" %(len(moneybags_months)) | |
| print "Moneybags Months" | |
| print "----------------" | |
| for yr, mth in moneybags_months: | |
| print "%2d-%d" %(mth, yr) | |
| if __name__ == "__main__": | |
| main() | |
| # Output ## | |
| ########### | |
| # Found 114 months | |
| # Moneybags Months | |
| # ---------------- | |
| # 1-1900 | |
| # 10-1900 | |
| # 7-1901 | |
| # 12-1902 | |
| # 8-1904 | |
| # 5-1905 | |
| # 1-1906 | |
| # 10-1906 | |
| # 7-1907 | |
| # 3-1909 | |
| # 8-1910 | |
| # 5-1911 | |
| # 1-1912 | |
| # 7-1912 | |
| # 12-1913 | |
| # 3-1915 | |
| # 5-1916 | |
| # 1-1917 | |
| # 10-1917 | |
| # 7-1918 | |
| # 12-1919 | |
| # 3-1920 | |
| # 8-1921 | |
| # 5-1922 | |
| # 1-1923 | |
| # 10-1923 | |
| # 12-1924 | |
| # 3-1926 | |
| # 8-1927 | |
| # 10-1928 | |
| # 7-1929 | |
| # 12-1930 | |
| # 8-1932 | |
| # 5-1933 | |
| # 1-1934 | |
| # 10-1934 | |
| # 7-1935 | |
| # 3-1937 | |
| # 8-1938 | |
| # 5-1939 | |
| # 1-1940 | |
| # 7-1940 | |
| # 12-1941 | |
| # 3-1943 | |
| # 5-1944 | |
| # 1-1945 | |
| # 10-1945 | |
| # 7-1946 | |
| # 12-1947 | |
| # 3-1948 | |
| # 8-1949 | |
| # 5-1950 | |
| # 1-1951 | |
| # 10-1951 | |
| # 12-1952 | |
| # 3-1954 | |
| # 8-1955 | |
| # 10-1956 | |
| # 7-1957 | |
| # 12-1958 | |
| # 8-1960 | |
| # 5-1961 | |
| # 1-1962 | |
| # 10-1962 | |
| # 7-1963 | |
| # 3-1965 | |
| # 8-1966 | |
| # 5-1967 | |
| # 1-1968 | |
| # 7-1968 | |
| # 12-1969 | |
| # 3-1971 | |
| # 5-1972 | |
| # 1-1973 | |
| # 10-1973 | |
| # 7-1974 | |
| # 12-1975 | |
| # 3-1976 | |
| # 8-1977 | |
| # 5-1978 | |
| # 1-1979 | |
| # 10-1979 | |
| # 12-1980 | |
| # 3-1982 | |
| # 8-1983 | |
| # 10-1984 | |
| # 7-1985 | |
| # 12-1986 | |
| # 8-1988 | |
| # 5-1989 | |
| # 1-1990 | |
| # 10-1990 | |
| # 7-1991 | |
| # 3-1993 | |
| # 8-1994 | |
| # 5-1995 | |
| # 1-1996 | |
| # 7-1996 | |
| # 12-1997 | |
| # 3-1999 | |
| # 5-2000 | |
| # 1-2001 | |
| # 10-2001 | |
| # 7-2002 | |
| # 12-2003 | |
| # 3-2004 | |
| # 8-2005 | |
| # 5-2006 | |
| # 1-2007 | |
| # 10-2007 | |
| # 12-2008 | |
| # 3-2010 | |
| # 8-2011 | |
| # 10-2012 |
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