python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Doc/includes/sqlite3/adapter_datetime.py

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+import sqlite3
+import datetime
+import time
+
+def adapt_datetime(ts):
+    return time.mktime(ts.timetuple())
+
+sqlite3.register_adapter(datetime.datetime, adapt_datetime)
+
+con = sqlite3.connect(":memory:")
+cur = con.cursor()
+
+now = datetime.datetime.now()
+cur.execute("select ?", (now,))
+print(cur.fetchone()[0])

third_party/python/Doc/includes/sqlite3/adapter_point_1.py

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+import sqlite3
+
+class Point:
+    def __init__(self, x, y):
+        self.x, self.y = x, y
+
+    def __conform__(self, protocol):
+        if protocol is sqlite3.PrepareProtocol:
+            return "%f;%f" % (self.x, self.y)
+
+con = sqlite3.connect(":memory:")
+cur = con.cursor()
+
+p = Point(4.0, -3.2)
+cur.execute("select ?", (p,))
+print(cur.fetchone()[0])

third_party/python/Doc/includes/sqlite3/adapter_point_2.py

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+import sqlite3
+
+class Point:
+    def __init__(self, x, y):
+        self.x, self.y = x, y
+
+def adapt_point(point):
+    return "%f;%f" % (point.x, point.y)
+
+sqlite3.register_adapter(Point, adapt_point)
+
+con = sqlite3.connect(":memory:")
+cur = con.cursor()
+
+p = Point(4.0, -3.2)
+cur.execute("select ?", (p,))
+print(cur.fetchone()[0])

third_party/python/Doc/includes/sqlite3/collation_reverse.py

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+import sqlite3
+
+def collate_reverse(string1, string2):
+    if string1 == string2:
+        return 0
+    elif string1 < string2:
+        return 1
+    else:
+        return -1
+
+con = sqlite3.connect(":memory:")
+con.create_collation("reverse", collate_reverse)
+
+cur = con.cursor()
+cur.execute("create table test(x)")
+cur.executemany("insert into test(x) values (?)", [("a",), ("b",)])
+cur.execute("select x from test order by x collate reverse")
+for row in cur:
+    print(row)
+con.close()

third_party/python/Doc/includes/sqlite3/complete_statement.py

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+# A minimal SQLite shell for experiments
+
+import sqlite3
+
+con = sqlite3.connect(":memory:")
+con.isolation_level = None
+cur = con.cursor()
+
+buffer = ""
+
+print("Enter your SQL commands to execute in sqlite3.")
+print("Enter a blank line to exit.")
+
+while True:
+    line = input()
+    if line == "":
+        break
+    buffer += line
+    if sqlite3.complete_statement(buffer):
+        try:
+            buffer = buffer.strip()
+            cur.execute(buffer)
+
+            if buffer.lstrip().upper().startswith("SELECT"):
+                print(cur.fetchall())
+        except sqlite3.Error as e:
+            print("An error occurred:", e.args[0])
+        buffer = ""
+
+con.close()

third_party/python/Doc/includes/sqlite3/connect_db_1.py

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+import sqlite3
+
+con = sqlite3.connect("mydb")

third_party/python/Doc/includes/sqlite3/connect_db_2.py

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+import sqlite3
+
+con = sqlite3.connect(":memory:")

third_party/python/Doc/includes/sqlite3/converter_point.py

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+import sqlite3
+
+class Point:
+    def __init__(self, x, y):
+        self.x, self.y = x, y
+
+    def __repr__(self):
+        return "(%f;%f)" % (self.x, self.y)
+
+def adapt_point(point):
+    return ("%f;%f" % (point.x, point.y)).encode('ascii')
+
+def convert_point(s):
+    x, y = list(map(float, s.split(b";")))
+    return Point(x, y)
+
+# Register the adapter
+sqlite3.register_adapter(Point, adapt_point)
+
+# Register the converter
+sqlite3.register_converter("point", convert_point)
+
+p = Point(4.0, -3.2)
+
+#########################
+# 1) Using declared types
+con = sqlite3.connect(":memory:", detect_types=sqlite3.PARSE_DECLTYPES)
+cur = con.cursor()
+cur.execute("create table test(p point)")
+
+cur.execute("insert into test(p) values (?)", (p,))
+cur.execute("select p from test")
+print("with declared types:", cur.fetchone()[0])
+cur.close()
+con.close()
+
+#######################
+# 1) Using column names
+con = sqlite3.connect(":memory:", detect_types=sqlite3.PARSE_COLNAMES)
+cur = con.cursor()
+cur.execute("create table test(p)")
+
+cur.execute("insert into test(p) values (?)", (p,))
+cur.execute('select p as "p [point]" from test')
+print("with column names:", cur.fetchone()[0])
+cur.close()
+con.close()

third_party/python/Doc/includes/sqlite3/countcursors.py

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+import sqlite3
+
+class CountCursorsConnection(sqlite3.Connection):
+    def __init__(self, *args, **kwargs):
+        sqlite3.Connection.__init__(self, *args, **kwargs)
+        self.numcursors = 0
+
+    def cursor(self, *args, **kwargs):
+        self.numcursors += 1
+        return sqlite3.Connection.cursor(self, *args, **kwargs)
+
+con = sqlite3.connect(":memory:", factory=CountCursorsConnection)
+cur1 = con.cursor()
+cur2 = con.cursor()
+print(con.numcursors)

third_party/python/Doc/includes/sqlite3/createdb.py

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+# Not referenced from the documentation, but builds the database file the other
+# code snippets expect.
+
+import sqlite3
+import os
+
+DB_FILE = "mydb"
+
+if os.path.exists(DB_FILE):
+    os.remove(DB_FILE)
+
+con = sqlite3.connect(DB_FILE)
+cur = con.cursor()
+cur.execute("""
+        create table people
+        (
+          name_last      varchar(20),
+          age            integer
+        )
+        """)
+
+cur.execute("insert into people (name_last, age) values ('Yeltsin',   72)")
+cur.execute("insert into people (name_last, age) values ('Putin',     51)")
+
+con.commit()
+
+cur.close()
+con.close()

third_party/python/Doc/includes/sqlite3/ctx_manager.py

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+import sqlite3
+
+con = sqlite3.connect(":memory:")
+con.execute("create table person (id integer primary key, firstname varchar unique)")
+
+# Successful, con.commit() is called automatically afterwards
+with con:
+    con.execute("insert into person(firstname) values (?)", ("Joe",))
+
+# con.rollback() is called after the with block finishes with an exception, the
+# exception is still raised and must be caught
+try:
+    with con:
+        con.execute("insert into person(firstname) values (?)", ("Joe",))
+except sqlite3.IntegrityError:
+    print("couldn't add Joe twice")

third_party/python/Doc/includes/sqlite3/execsql_fetchonerow.py

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+import sqlite3
+
+con = sqlite3.connect("mydb")
+
+cur = con.cursor()
+SELECT = "select name_last, age from people order by age, name_last"
+
+# 1. Iterate over the rows available from the cursor, unpacking the
+# resulting sequences to yield their elements (name_last, age):
+cur.execute(SELECT)
+for (name_last, age) in cur:
+    print('%s is %d years old.' % (name_last, age))
+
+# 2. Equivalently:
+cur.execute(SELECT)
+for row in cur:
+    print('%s is %d years old.' % (row[0], row[1]))

third_party/python/Doc/includes/sqlite3/execsql_printall_1.py

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+import sqlite3
+
+# Create a connection to the database file "mydb":
+con = sqlite3.connect("mydb")
+
+# Get a Cursor object that operates in the context of Connection con:
+cur = con.cursor()
+
+# Execute the SELECT statement:
+cur.execute("select * from people order by age")
+
+# Retrieve all rows as a sequence and print that sequence:
+print(cur.fetchall())

third_party/python/Doc/includes/sqlite3/execute_1.py

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+import sqlite3
+
+con = sqlite3.connect(":memory:")
+cur = con.cursor()
+cur.execute("create table people (name_last, age)")
+
+who = "Yeltsin"
+age = 72
+
+# This is the qmark style:
+cur.execute("insert into people values (?, ?)", (who, age))
+
+# And this is the named style:
+cur.execute("select * from people where name_last=:who and age=:age", {"who": who, "age": age})
+
+print(cur.fetchone())

third_party/python/Doc/includes/sqlite3/execute_3.py

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+import sqlite3
+
+con = sqlite3.connect("mydb")
+
+cur = con.cursor()
+
+who = "Yeltsin"
+age = 72
+
+cur.execute("select name_last, age from people where name_last=:who and age=:age",
+    locals())
+print(cur.fetchone())

third_party/python/Doc/includes/sqlite3/executemany_1.py

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+import sqlite3
+
+class IterChars:
+    def __init__(self):
+        self.count = ord('a')
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        if self.count > ord('z'):
+            raise StopIteration
+        self.count += 1
+        return (chr(self.count - 1),) # this is a 1-tuple
+
+con = sqlite3.connect(":memory:")
+cur = con.cursor()
+cur.execute("create table characters(c)")
+
+theIter = IterChars()
+cur.executemany("insert into characters(c) values (?)", theIter)
+
+cur.execute("select c from characters")
+print(cur.fetchall())

third_party/python/Doc/includes/sqlite3/executemany_2.py

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+import sqlite3
+import string
+
+def char_generator():
+    for c in string.ascii_lowercase:
+        yield (c,)
+
+con = sqlite3.connect(":memory:")
+cur = con.cursor()
+cur.execute("create table characters(c)")
+
+cur.executemany("insert into characters(c) values (?)", char_generator())
+
+cur.execute("select c from characters")
+print(cur.fetchall())

third_party/python/Doc/includes/sqlite3/executescript.py

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+import sqlite3
+
+con = sqlite3.connect(":memory:")
+cur = con.cursor()
+cur.executescript("""
+    create table person(
+        firstname,
+        lastname,
+        age
+    );
+
+    create table book(
+        title,
+        author,
+        published
+    );
+
+    insert into book(title, author, published)
+    values (
+        'Dirk Gently''s Holistic Detective Agency',
+        'Douglas Adams',
+        1987
+    );
+    """)

third_party/python/Doc/includes/sqlite3/insert_more_people.py

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+import sqlite3
+
+con = sqlite3.connect("mydb")
+
+cur = con.cursor()
+
+newPeople = (
+    ('Lebed'       , 53),
+    ('Zhirinovsky' , 57),
+  )
+
+for person in newPeople:
+    cur.execute("insert into people (name_last, age) values (?, ?)", person)
+
+# The changes will not be saved unless the transaction is committed explicitly:
+con.commit()

third_party/python/Doc/includes/sqlite3/load_extension.py

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+import sqlite3
+
+con = sqlite3.connect(":memory:")
+
+# enable extension loading
+con.enable_load_extension(True)
+
+# Load the fulltext search extension
+con.execute("select load_extension('./fts3.so')")
+
+# alternatively you can load the extension using an API call:
+# con.load_extension("./fts3.so")
+
+# disable extension loading again
+con.enable_load_extension(False)
+
+# example from SQLite wiki
+con.execute("create virtual table recipe using fts3(name, ingredients)")
+con.executescript("""
+    insert into recipe (name, ingredients) values ('broccoli stew', 'broccoli peppers cheese tomatoes');
+    insert into recipe (name, ingredients) values ('pumpkin stew', 'pumpkin onions garlic celery');
+    insert into recipe (name, ingredients) values ('broccoli pie', 'broccoli cheese onions flour');
+    insert into recipe (name, ingredients) values ('pumpkin pie', 'pumpkin sugar flour butter');
+    """)
+for row in con.execute("select rowid, name, ingredients from recipe where name match 'pie'"):
+    print(row)

third_party/python/Doc/includes/sqlite3/md5func.py

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+import sqlite3
+import hashlib
+
+def md5sum(t):
+    return hashlib.md5(t).hexdigest()
+
+con = sqlite3.connect(":memory:")
+con.create_function("md5", 1, md5sum)
+cur = con.cursor()
+cur.execute("select md5(?)", (b"foo",))
+print(cur.fetchone()[0])

third_party/python/Doc/includes/sqlite3/mysumaggr.py

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+import sqlite3
+
+class MySum:
+    def __init__(self):
+        self.count = 0
+
+    def step(self, value):
+        self.count += value
+
+    def finalize(self):
+        return self.count
+
+con = sqlite3.connect(":memory:")
+con.create_aggregate("mysum", 1, MySum)
+cur = con.cursor()
+cur.execute("create table test(i)")
+cur.execute("insert into test(i) values (1)")
+cur.execute("insert into test(i) values (2)")
+cur.execute("select mysum(i) from test")
+print(cur.fetchone()[0])

third_party/python/Doc/includes/sqlite3/parse_colnames.py

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+import sqlite3
+import datetime
+
+con = sqlite3.connect(":memory:", detect_types=sqlite3.PARSE_COLNAMES)
+cur = con.cursor()
+cur.execute('select ? as "x [timestamp]"', (datetime.datetime.now(),))
+dt = cur.fetchone()[0]
+print(dt, type(dt))

third_party/python/Doc/includes/sqlite3/pysqlite_datetime.py

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+import sqlite3
+import datetime
+
+con = sqlite3.connect(":memory:", detect_types=sqlite3.PARSE_DECLTYPES|sqlite3.PARSE_COLNAMES)
+cur = con.cursor()
+cur.execute("create table test(d date, ts timestamp)")
+
+today = datetime.date.today()
+now = datetime.datetime.now()
+
+cur.execute("insert into test(d, ts) values (?, ?)", (today, now))
+cur.execute("select d, ts from test")
+row = cur.fetchone()
+print(today, "=>", row[0], type(row[0]))
+print(now, "=>", row[1], type(row[1]))
+
+cur.execute('select current_date as "d [date]", current_timestamp as "ts [timestamp]"')
+row = cur.fetchone()
+print("current_date", row[0], type(row[0]))
+print("current_timestamp", row[1], type(row[1]))

third_party/python/Doc/includes/sqlite3/row_factory.py

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+import sqlite3
+
+def dict_factory(cursor, row):
+    d = {}
+    for idx, col in enumerate(cursor.description):
+        d[col[0]] = row[idx]
+    return d
+
+con = sqlite3.connect(":memory:")
+con.row_factory = dict_factory
+cur = con.cursor()
+cur.execute("select 1 as a")
+print(cur.fetchone()["a"])

third_party/python/Doc/includes/sqlite3/rowclass.py

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+import sqlite3
+
+con = sqlite3.connect(":memory:")
+con.row_factory = sqlite3.Row
+
+cur = con.cursor()
+cur.execute("select 'John' as name, 42 as age")
+for row in cur:
+    assert row[0] == row["name"]
+    assert row["name"] == row["nAmE"]
+    assert row[1] == row["age"]
+    assert row[1] == row["AgE"]

third_party/python/Doc/includes/sqlite3/shared_cache.py

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+import sqlite3
+
+# The shared cache is only available in SQLite versions 3.3.3 or later
+# See the SQLite documentation for details.
+
+sqlite3.enable_shared_cache(True)

third_party/python/Doc/includes/sqlite3/shortcut_methods.py

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+import sqlite3
+
+persons = [
+    ("Hugo", "Boss"),
+    ("Calvin", "Klein")
+    ]
+
+con = sqlite3.connect(":memory:")
+
+# Create the table
+con.execute("create table person(firstname, lastname)")
+
+# Fill the table
+con.executemany("insert into person(firstname, lastname) values (?, ?)", persons)
+
+# Print the table contents
+for row in con.execute("select firstname, lastname from person"):
+    print(row)
+
+print("I just deleted", con.execute("delete from person").rowcount, "rows")

third_party/python/Doc/includes/sqlite3/simple_tableprinter.py

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+import sqlite3
+
+FIELD_MAX_WIDTH = 20
+TABLE_NAME = 'people'
+SELECT = 'select * from %s order by age, name_last' % TABLE_NAME
+
+con = sqlite3.connect("mydb")
+
+cur = con.cursor()
+cur.execute(SELECT)
+
+# Print a header.
+for fieldDesc in cur.description:
+    print(fieldDesc[0].ljust(FIELD_MAX_WIDTH), end=' ')
+print() # Finish the header with a newline.
+print('-' * 78)
+
+# For each row, print the value of each field left-justified within
+# the maximum possible width of that field.
+fieldIndices = range(len(cur.description))
+for row in cur:
+    for fieldIndex in fieldIndices:
+        fieldValue = str(row[fieldIndex])
+        print(fieldValue.ljust(FIELD_MAX_WIDTH), end=' ')
+
+    print() # Finish the row with a newline.

third_party/python/Doc/includes/sqlite3/text_factory.py

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+import sqlite3
+
+con = sqlite3.connect(":memory:")
+cur = con.cursor()
+
+AUSTRIA = "\xd6sterreich"
+
+# by default, rows are returned as Unicode
+cur.execute("select ?", (AUSTRIA,))
+row = cur.fetchone()
+assert row[0] == AUSTRIA
+
+# but we can make sqlite3 always return bytestrings ...
+con.text_factory = bytes
+cur.execute("select ?", (AUSTRIA,))
+row = cur.fetchone()
+assert type(row[0]) is bytes
+# the bytestrings will be encoded in UTF-8, unless you stored garbage in the
+# database ...
+assert row[0] == AUSTRIA.encode("utf-8")
+
+# we can also implement a custom text_factory ...
+# here we implement one that appends "foo" to all strings
+con.text_factory = lambda x: x.decode("utf-8") + "foo"
+cur.execute("select ?", ("bar",))
+row = cur.fetchone()
+assert row[0] == "barfoo"