sqlalchemy: fix default integer constructor

* Addresses issue with default constructor on types that do not
  accept arguments in SQLAlchemy>=0.9. (closes #1776)

Signed-off-by: Leonardo Rossi <leonardo.r@cern.ch>
1: D100 Docstring missing
4: I102 copyright year is outdated, expected 2014 but got 2012
24:1: F999 redefinition of unused 'DateTime' from line 24
24:1: F401 'Index' imported but unused
24:1: F401 'Enum' imported but unused
24:1: F401 'DateTime' imported but unused
24:1: F401 'ForeignKey' imported but unused
24:1: F401 'Date' imported but unused
24:1: F401 'MetaData' imported but unused
24:1: F401 'Column' imported but unused
24:1: F401 'Float' imported but unused
24:1: F401 'Table' imported but unused
25:9: E126 continuation line over-indented for hanging indent
26:1: F401 'Double' imported but unused
27:1: F401 'Integer' imported but unused
28:1: F401 'Text' imported but unused
29:1: F401 'TinyText' imported but unused
30:1: F401 'BigInteger' imported but unused
31:1: F401 'MediumInteger' imported but unused
32:1: F401 'SmallInteger' imported but unused
33:1: F401 'TinyInteger' imported but unused
34:1: F401 'String' imported but unused
35:1: F401 'Char' imported but unused
36:1: F401 'TIMESTAMP' imported but unused
39:1: F401 'relationship' imported but unused
39:1: F401 'class_mapper' imported but unused
39:1: F401 'backref' imported but unused
46:1: F401 'MySQLIdentifierPreparer_mysqldb' imported but unused
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84:64: E711 comparison to None should be 'if cond is not None:'
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114:65: E711 comparison to None should be 'if cond is not None:'
114:13: E128 continuation line under-indented for visual indent
117:13: E124 closing bracket does not match visual indentation
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141:1: F999 redefinition of unused 'compile_binary' from line 127
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145:1: F999 redefinition of unused 'compile_largebinary' from line 131
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162:23: E711 comparison to None should be 'if cond is not None:'
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167:23: E711 comparison to None should be 'if cond is not None:'
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174:5: E301 expected 1 blank line, found 0
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175:40: E703 statement ends with a semicolon
178: D401 First line should be imperative: 'Decode', not 'Decodes'
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181:23: E711 comparison to None should be 'if cond is not None:'
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186:23: E711 comparison to None should be 'if cond is not None:'
190:1: E303 too many blank lines (3)
190: D203 Expected 1 blank line *before* class docstring, found 0
190: D204 Expected 1 blank line *after* class docstring, found 0
190: D200 One-line docstring should not occupy 2 lines
194:5: E301 expected 1 blank line, found 0
194: D102 Docstring missing
195:40: E703 statement ends with a semicolon
198: D401 First line should be imperative: 'Decode', not 'Decodes'
198: D200 One-line docstring should not occupy 2 lines
201:23: E711 comparison to None should be 'if cond is not None:'
203: D200 One-line docstring should not occupy 2 lines
206:23: E711 comparison to None should be 'if cond is not None:'
208:1: W391 blank line at end of file