Metadata-Version: 2.1
Name: genpyteal
Version: 2.0.1
Summary: Generate PyTeal with normal Python
Home-page: https://github.com/runvnc/genpyteal
Author: runvnc (Jason Livesay)
Author-email: runvnc@gmail.com
License: MIT
Description: # genpyteal
        
        Converts Python to PyTeal. Your mileage will vary depending on how much you deviate from the examples.
        Its quite easy to get an error by doing something not supported.  However, it often still outputs useful PyTeal that you can then
        fix up.
        
        If you appreciate this tool, you are welcome to send ALGOs to `RMONE54GR6CYOJREKZQNFCZAUGJHSPBUJNFRBTXS4NKNQL3NJQIHVCS53M`.
        ## Installation
        
        `pip3 install genpyteal` or `pip install genpyteal`
        
        *Warning*: The scripts have `python3` in them because that is what works on my system. It only works with Python 3. 
        There might be some system where it needs to say `python` instead.  If so, maybe just pull the code from the github repo to change it?
        
        ## Usage
        
        To generate PyTeal:
        
        `genpyteal thescript.py`
        
        To generate PyTeal and do syntax highlighting (requires `pygmentize` and `boxes` to be installed):
        
        `genpyteal thescript.py | niceout`
        
        To generate PyTeal and then TEAL:
        
        `genteal thescript.py`
        
        To show the AST (FST) of a Python program (uses RedBaron .help(), and requires `ipython` installed):
        
        `showast thescript.py`
        
        ## Supported constructs
        
        `statement list` (= Seq), `integer const` ( = Int(n)), `if/else`, `while`, `print` (= `Log`), `+` ( = Concat(str1, str2) ), 
        `True/False` (= 1/0), `and/or/not` ...
        (maybe something I am forgetting).
        
        ## Details
        
        You can use a subset of Python. For scratch variables, you will need to initialize them at the beginning of a function, such as `x = 0` or `s = "tom"`. It uses 
        that to determine the type. Sometimes you may need to specify Bytes or Int still. Integer/string literals get Int/Bytes added automatically. You can use `print` instead of Log. 
        
        Name the main function `app` to indicate a stateful application contract, or `sig` for a LogicSig contract.
        
        For transaction fields, you can leave off the parenthesis, e.g. `Txn.sender` instead of `Txn.sender()`.
        
        It will assume functions return `uint64` unless you specify `@bytes` or there is no return, which will automatically insert `@Subroutine(TealType.none)`
        
        If you want to print a number in the log, you can use the numtostr function I made:
        
        ```python
        from lib import util
        
        def app():
          print("Your number is " + util.numtostr(100))
        
        ```
        
        The best explanation is just to show the examples.
        
        ## Examples
        
        ## examples/bool.py 
        
        ```python
        def app():
          amt = 15
          return amt > 10 and amt < 20 or amt == 0
        ```
        ## examples/callscratch.py 
        
        ```python
        def g(x):
            return 3
        
        def f(n):
            return g(n)
        
        def app():
            x = f(30)
            name = "Bob"
            print(name)
            return 100
        ```
        ## examples/checkgroup.py 
        
        ```python
        PAYTO = Addr('6ZHGHH5Z5CTPCF5WCESXMGRSVK7QJETR63M3NY5FJCUYDHO57VTCMJOBGY')
        FEE = 10 * 1000000
        ZERO = Global.zero_address()
        
        def no_close_to(i):
          Assert( Gtxn[i].close_remainder_to == ZERO )
        
        def no_rekey(i):
          Assert( Gtxn[i].rekey_to == ZERO )
        
        def verify_payment(i):
          Assert( Gtxn[i].receiver == PAYTO and
                  Gtxn[i].amount == Int(FEE) and
                  Gtxn[i].type_enum == TxnType.Payment )
                 
        def app():
          Assert( Global.group_size == 2 )
          
          no_close_to(1)
          no_rekey(1)
        
          verify_payment(1)
        
          App.globalPut('lastPaymentFrom', Gtxn[1].sender)
          Approve()
        ```
        ## examples/ifseq.py 
        
        ```python
        
        def foo(b):
          x = b
        
        def app():
          foo(10)
          if 1 == 1:
            return 1
          else:
            return 0
        ```
        ## examples/inner.py 
        
        ```python
        
        def pay(amount: uint64, receiver: bytes):
            Begin()
            SetFields({
                TxnField.type_enum: TxnType.Payment,
                TxnField.sender: Global.current_application_address,
                TxnField.amount: amount,
                TxnField.receiver: receiver
                })
            Submit()
        
        def app():
            pay(10, Addr('6ZHGHH5Z5CTPCF5WCESXMGRSVK7QJETR63M3NY5FJCUYDHO57VTCMJOBGY'))
            result = 0
            if Txn.first_valid > 1000000:
                result = 1
            return result
        
        ```
        ## examples/strargs.py 
        
        ```python
        def app():
          name = ""
          name = Txn.application_args[0]
          age = Btoi(Txn.application_args[1])
          if age > 65:
            print("User " + name + " is at retirement age.")
            return 1
          else:
            print("User " + name + " is still young.")
            return 0
        ```
        ## examples/swap.py 
        
        ```python
        """Atomic Swap"""
        
        alice = Addr("6ZHGHH5Z5CTPCF5WCESXMGRSVK7QJETR63M3NY5FJCUYDHO57VTCMJOBGY")
        bob = Addr("7Z5PWO2C6LFNQFGHWKSK5H47IQP5OJW2M3HA2QPXTY3WTNP5NU2MHBW27M")
        secret = Bytes("base32", "2323232323232323")
        timeout = 3000
        ZERO_ADDR = Global.zero_address()
        
        def sig(
            tmpl_seller=alice,
            tmpl_buyer=bob,
            tmpl_fee=1000,
            tmpl_secret=secret,
            tmpl_hash_fn=Sha256,
            tmpl_timeout=timeout,
        ):
            fee_cond = Txn.fee < Int(tmpl_fee)
            is_payment = Txn.type_enum == TxnType.Payment
            no_closeto = Txn.close_remainder_to == ZERO_ADDR
            no_rekeyto = Txn.rekey_to == ZERO_ADDR
            safety_cond = is_payment and no_rekeyto and no_closeto
            
            recv_cond = (Txn.receiver == tmpl_seller) and (tmpl_hash_fn(Arg(0)) == tmpl_secret)
            esc_cond = (Txn.receiver == tmpl_buyer) and (Txn.first_valid > Int(tmpl_timeout))
        
            return (fee_cond and safety_cond) and (recv_cond or esc_cond)
        ```
        ## examples/usenumtostr.py 
        
        ```python
        from lib import util
        
        def app():
          print("The best number is " + util.numtostr(42))
          return True
        ```
        ## examples/whilecallif.py 
        
        ```python
        from lib import util
        
        def proc(n):
          return n * 2
        
        def acceptable(n, target):
          if n >= target:
            print("Acceptable. Diff is " + util.numtostr(n - target))
            return True
          else:
            return False
        
        def app():
          total = 1
          i = 0
          while not acceptable(total, Btoi(Txn.application_args[0])):
            total = proc(total)
            i += 1
          return i
        ```
        ## examples/whilesum.py 
        
        ```python
        def app():  
          totalFees = 0
          i = 0
          while i < Global.group_size:
            totalFees = totalFees + Gtxn[i].fee
            i = i + 1
          return 1
        ```
        
        ## lib/util.py
        ```python
        @bytes
        def numtostr(num):
          out = "             "
          i = 0
          digit = 0
          n = num
          done = False
          while not done:
            digit = n % 10
            out = SetByte(out, 12-i, digit+48)
            n = n / 10		
            if n == 0: done = True
            i = i + 1
          return Extract(out, 12 - i + 1, i)
        ```
        
Platform: UNKNOWN
Classifier: License :: OSI Approved :: MIT License
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.7
Description-Content-Type: text/markdown
