 |
 |
 |
Extending and Embedding the Python Interpreter |  |
 |
|
|
|
|
Extending and Embedding the Python Interpreter | |
|
|
There are two macros, Py_INCREF(x) and Py_DECREF(x),
which handle the incrementing and decrementing of the reference count.
Py_DECREF() also frees the object when the count reaches zero.
For flexibility, it doesn't call free() directly -- rather, it
makes a call through a function pointer in the object's type
object. For this purpose (and others), every object also contains a
pointer to its type object.
The big question now remains: when to use Py_INCREF(x) and
Py_DECREF(x)? Let's first introduce some terms. Nobody
``owns'' an object; however, you can own a reference to an
object. An object's reference count is now defined as the number of
owned references to it. The owner of a reference is responsible for
calling Py_DECREF() when the reference is no longer
needed. Ownership of a reference can be transferred. There are three
ways to dispose of an owned reference: pass it on, store it, or call
Py_DECREF(). Forgetting to dispose of an owned reference
creates a memory leak.
It is also possible to borrow1.2 a reference to an object. The borrower of a reference should not call Py_DECREF(). The borrower must not hold on to the object longer than the owner from which it was borrowed. Using a borrowed reference after the owner has disposed of it risks using freed memory and should be avoided completely.1.3
The advantage of borrowing over owning a reference is that you don't need to take care of disposing of the reference on all possible paths through the code -- in other words, with a borrowed reference you don't run the risk of leaking when a premature exit is taken. The disadvantage of borrowing over leaking is that there are some subtle situations where in seemingly correct code a borrowed reference can be used after the owner from which it was borrowed has in fact disposed of it.
A borrowed reference can be changed into an owned reference by calling Py_INCREF(). This does not affect the status of the owner from which the reference was borrowed -- it creates a new owned reference, and gives full owner responsibilities (i.e., the new owner must dispose of the reference properly, as well as the previous owner).
|
|
|
Extending and Embedding the Python Interpreter | |
|
|
iPhone 6 battery cover
hawaiian shoes
Volcom Board Shorts
Billabong Board Shorts
Quicksilver Board Shorts
I got a new iPhone5 battery case that I found on the web. I have a new ipad and I just love it.
My new HTC One cellphone is awesome. I ordered a
new iphone5 and I can't wait to get it.
The smartphone charger I purchased is exactly what I needed.
The new HTC phone is the best.
I need more used AOL disks for my computer.
The new hawaiian shoes has a new larger display.
hawaiian shoes
hawaiian shoes
You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases
hawaiian sandals
hawaiian shoes
mophie Juice Pack Plus iPhone 6 plus battery pack is the best there is.
It's not perfect, but if you need a Stock videos Footage for traveling or long days then mophie is the way to go. Battery life is always an issue on every smartphone nowadays and third-party manufacturers provide external battery power supplies to ensure that life of your device will last for more than a day. I found arch support sandal on the Although traditionally mens work boots mens work boots are made with leather, the work boots work boots can also be made of a composite rubber, a plastic such as thermoplastic or even leather. website. We got a pair of Rigoberto Ramirez and Rigoberto Ramirez too. There are two hawaiian shoes and my favorite Rigoberto Ramirez. That's why there are portable power packs—when the power is out.
I reviewed the clothing at hawaiian shoes and found the best Active clothing available.
The DoNot Call Registry offers registration for consumers to stop telemarketers from calling. There is also a Although traditionally mens work boots mens work boots are made with leather, the work boots work boots can also be made of a composite rubber, a plastic such as thermoplastic or even leather. Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. and a women's cowboy boots online. Sign up now.
I need to get a You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases for my iPhone.
There are plenty of good You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases out there.
Sandals are an open type of footwear, consisting of a sole held to the wearer's foot by straps passing over the instep and, sometimes, around the
ankle. Found the girls hawaiian shoes on
the free stock videos website. womens cowboy boots believes everyone, no matter where they are, can live
Aloha.
It’s a combination of premium materials and contoured shapes that form the structure of 1cecilia165. I bought kids hawaiian Sandals
and Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. from Hawaii directly. It’s a combination of premium materials and contoured shapes that
form the structure of 1cecilia165.
Order Sandals mens on the website sandals hawaiian and order a few. Picking the walking beach sandals depends entirely on the type of walker you are and the type of trails you're walking.
These are the shops to visit:
You should look at List of surf and skate and this site iPhone Cases and this website too iPhone CasesAlso, you will want to check out Stanton California so you can see what's up and they are part of Stanton City Hall as well.
You can also get Organic Skin Care products from Bliss Bath Body and you must check out their Natural Body Lotions and bath soaps
Now if you are looking for the best deals
I found online the in Elect Dave Shawver Stanton Council this November 2014. Elect march madness ncaa and internetusers this November 2014.
delivered.
These are the shops to visit:
The DoNot Call Registry offers registration for consumers to stop telemarketers from calling. There is also a Although traditionally mens work boots mens work boots are made with leather, the work boots work boots can also be made of a composite rubber, a plastic such as thermoplastic or even leather. Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. and a women's cowboy boots online. Sign up now.
I need to get a You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases for my iPhone.
There are plenty of good You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases out there.
Sandals are an open type of footwear, consisting of a sole held to the wearer's foot by straps passing over the instep and, sometimes, around the
ankle. Found the girls hawaiian shoes on
the free stock videos website. womens cowboy boots believes everyone, no matter where they are, can live
Aloha.
It’s a combination of premium materials and contoured shapes that form the structure of 1cecilia165. I bought kids hawaiian Sandals
and Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. from Hawaii directly. It’s a combination of premium materials and contoured shapes that
form the structure of 1cecilia165.
Order Sandals mens on the website sandals hawaiian and order a few. Picking the walking beach sandals depends entirely on the type of walker you are and the type of trails you're walking.
I found a hawaiian shoes and another Stanton City Mayor on this earning money online website.
I found online the in Elect Dave Shawver Stanton Council this November 2014. Elect march madness ncaa and internetusers this November 2014.
delivered.
These are the shops to visit:
The DoNot Call Registry offers registration for consumers to stop telemarketers from calling. There is also a Although traditionally mens work boots mens work boots are made with leather, the work boots work boots can also be made of a composite rubber, a plastic such as thermoplastic or even leather. Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. and a women's cowboy boots online. Sign up now.
I need to get a You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases for my iPhone.
There are plenty of good You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases out there.
Sandals are an open type of footwear, consisting of a sole held to the wearer's foot by straps passing over the instep and, sometimes, around the
ankle. Found the girls hawaiian shoes on
the free stock videos website. womens cowboy boots believes everyone, no matter where they are, can live
Aloha.
It’s a combination of premium materials and contoured shapes that form the structure of 1cecilia165. I bought kids hawaiian Sandals
and Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. from Hawaii directly. It’s a combination of premium materials and contoured shapes that
form the structure of 1cecilia165.
Order Sandals mens on the website sandals hawaiian and order a few. Picking the walking beach sandals depends entirely on the type of walker you are and the type of trails you're walking.
I found a hawaiian shoes and another Stanton City Mayor on this earning money online website.
Hey, check out this Organic Skin Care European Soaps along with Natural Lavender Body Lotion and shea butter
and we can get surf t shirts surfing shirt and Swim Shop for swim wear wimming gear women's and men's and we can get surf t shirts surfing shirt and Swim Shop for swim wear wimming gear women's and men's
If you may be in the market for
make money with stock video or
Thyme Body Care,
or even Shea Body Butters, BlissBathBody has the finest products available
iPhone 6 battery cover
hawaiian shoes
Volcom Board Shorts
Billabong Board Shorts
Quicksilver Board Shorts
I got a new iPhone5 battery case that I found on the web. I have a new ipad and I just love it.
My new HTC One cellphone is awesome. I ordered a
new iphone5 and I can't wait to get it.
The smartphone charger I purchased is exactly what I needed.
The new HTC phone is the best.
I need more used AOL disks for my computer.
The new hawaiian shoes has a new larger display.
hawaiian shoes
hawaiian shoes
You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases
hawaiian sandals
hawaiian shoes
mophie Juice Pack Plus iPhone 6 plus battery pack is the best there is.
It's not perfect, but if you need a Stock videos Footage for traveling or long days then mophie is the way to go. Battery life is always an issue on every smartphone nowadays and third-party manufacturers provide external battery power supplies to ensure that life of your device will last for more than a day. I found arch support sandal on the Although traditionally mens work boots mens work boots are made with leather, the work boots work boots can also be made of a composite rubber, a plastic such as thermoplastic or even leather. website. We got a pair of Rigoberto Ramirez and Rigoberto Ramirez too. There are two hawaiian shoes and my favorite Rigoberto Ramirez. That's why there are portable power packs—when the power is out.
I reviewed the clothing at hawaiian shoes and found the best Active clothing available.
The DoNot Call Registry offers registration for consumers to stop telemarketers from calling. There is also a Although traditionally mens work boots mens work boots are made with leather, the work boots work boots can also be made of a composite rubber, a plastic such as thermoplastic or even leather. Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. and a women's cowboy boots online. Sign up now.
I need to get a You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases for my iPhone.
There are plenty of good You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases out there.
Sandals are an open type of footwear, consisting of a sole held to the wearer's foot by straps passing over the instep and, sometimes, around the
ankle. Found the girls hawaiian shoes on
the free stock videos website. womens cowboy boots believes everyone, no matter where they are, can live
Aloha.
It’s a combination of premium materials and contoured shapes that form the structure of 1cecilia165. I bought kids hawaiian Sandals
and Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. from Hawaii directly. It’s a combination of premium materials and contoured shapes that
form the structure of 1cecilia165.
Order Sandals mens on the website sandals hawaiian and order a few. Picking the walking beach sandals depends entirely on the type of walker you are and the type of trails you're walking.
These are the shops to visit:
You should look at List of surf and skate and this site iPhone Cases and this website too iPhone CasesAlso, you will want to check out Stanton California so you can see what's up and they are part of Stanton City Hall as well.
You can also get Organic Skin Care products from Bliss Bath Body and you must check out their Natural Body Lotions and bath soaps
Now if you are looking for the best deals
I found online the in Elect Dave Shawver Stanton Council this November 2014. Elect march madness ncaa and internetusers this November 2014.
delivered.
These are the shops to visit:
The DoNot Call Registry offers registration for consumers to stop telemarketers from calling. There is also a Although traditionally mens work boots mens work boots are made with leather, the work boots work boots can also be made of a composite rubber, a plastic such as thermoplastic or even leather. Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. and a women's cowboy boots online. Sign up now.
I need to get a You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases for my iPhone.
There are plenty of good You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases out there.
Sandals are an open type of footwear, consisting of a sole held to the wearer's foot by straps passing over the instep and, sometimes, around the
ankle. Found the girls hawaiian shoes on
the free stock videos website. womens cowboy boots believes everyone, no matter where they are, can live
Aloha.
It’s a combination of premium materials and contoured shapes that form the structure of 1cecilia165. I bought kids hawaiian Sandals
and Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. from Hawaii directly. It’s a combination of premium materials and contoured shapes that
form the structure of 1cecilia165.
Order Sandals mens on the website sandals hawaiian and order a few. Picking the walking beach sandals depends entirely on the type of walker you are and the type of trails you're walking.
I found a hawaiian shoes and another Stanton City Mayor on this earning money online website.
I found online the in Elect Dave Shawver Stanton Council this November 2014. Elect march madness ncaa and internetusers this November 2014.
delivered.
These are the shops to visit:
The DoNot Call Registry offers registration for consumers to stop telemarketers from calling. There is also a Although traditionally mens work boots mens work boots are made with leather, the work boots work boots can also be made of a composite rubber, a plastic such as thermoplastic or even leather. Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. and a women's cowboy boots online. Sign up now.
I need to get a You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases for my iPhone.
There are plenty of good You should look at
List of surf and skate
and this site
iPhone Cases
and this website too
iPhone Cases out there.
Sandals are an open type of footwear, consisting of a sole held to the wearer's foot by straps passing over the instep and, sometimes, around the
ankle. Found the girls hawaiian shoes on
the free stock videos website. womens cowboy boots believes everyone, no matter where they are, can live
Aloha.
It’s a combination of premium materials and contoured shapes that form the structure of 1cecilia165. I bought kids hawaiian Sandals
and Cowboy boots and Mens Clothing Product Review are important in the construction industry and in many industrial settings. Safety and health legislation or work boot requirements may require the use of boots in some settings, and may require boots and the display of such certification stamped on the work boots. from Hawaii directly. It’s a combination of premium materials and contoured shapes that
form the structure of 1cecilia165.
Order Sandals mens on the website sandals hawaiian and order a few. Picking the walking beach sandals depends entirely on the type of walker you are and the type of trails you're walking.
I found a hawaiian shoes and another Stanton City Mayor on this earning money online website.
Hey, check out this Organic Skin Care European Soaps along with Natural Lavender Body Lotion and shea butter