Built-in Functions
Currently, the Python code mode supports the following built-in functions:
| No. | Built-in Function | Description |
|---|---|---|
| 1 | abs() | Calculates the absolute value. |
| 2 | all() | Checks whether all elements in a sequence (set, list, tuple, or dictionary) meet the specified condition. |
| 3 | any() | Checks whether any elements in a set meet the specified condition. |
| 4 | bool() | Constructs a Boolean value. |
| 5 | bytearray() | Constructs a byte array. |
| 6 | bytes() | Constructs an empty bytes object. |
| 7 | chr() | Returns the ASCII character of an integer within the range of 0–256. |
| 8 | dict() | Creates a dictionary. |
| 9 | enumerate() | Lists the elements and element subscripts in a traversable data object. This function is generally used in a for loop. |
| 10 | filter() | Filters a set. For example, the result of list(filter(lambda x:x>=100, [1,3,4,100,102])) is [100,102]. |
| 11 | float() | Constructs a floating-point number. |
| 12 | getattr() | Calculates the attribute value of an object. |
| 13 | hasattr() | Checks whether an object has an attribute. |
| 14 | hash() | Calculates the hash value. |
| 15 | id() | Returns the unique identifier of an object. |
| 16 | int() | Constructs an integer. |
| 17 | isinstance() | Checks whether an object is of a certain type. |
| 18 | iter() | Generates an iterator. |
| 19 | len() | Gets the number of elements in a set. |
| 20 | list() | Constructs a list. |
| 21 | map() | Maps the specified sequence according to the function. For example, the result of list(map(lambda x: x * 2, [1, 2, 3, 4, 5])) is [2, 4, 6, 8, 10]. |
| 22 | max() | Gets the maximum value. |
| 23 | min() | Gets the minimum value. |
| 24 | next() | Returns the next item of an iterator. This function is used together with iter(). |
| 25 | objects() | Returns an empty object. |
| 26 | ord() | Returns the integer value of an ASCII character. |
| 27 | pow() | Calculates the power of a number. |
| 28 | print() | Prints the relevant information during debugging in Python code mode (it takes effect only when you use the debugging feature when editing a Dataway expression). |
| 29 | range() | Creates an iterable object. For example, the result of list(range(5)) is [0, 1, 2, 3, 4]. |
| 30 | reversed() | Creates a revere iterator. For example, the result of list(reversed('abcdefg')) is ['g', 'f', 'e', 'd', 'c', 'b', 'a']. |
| 31 | round() | Returns the nearest integer of a value. |
| 32 | set() | Creates a set. |
| 33 | slice() | Sets a slice of elements. |
| 34 | sorted() | Sorts. |
| 35 | str() | Constructs a string. |
| 36 | sum() | Gets the sum of values. |
| 37 | tuple() | Constructs a tuple. |
| 38 | type() | Returns the data type of an object. |
| 39 | zip() | Zips elements in an iterable object into multiple tuples. For example, the result of list(zip([1,2,3], [4,5,6])) is [(1, 4), (2, 5), (3, 6)]. |
Third-Party Module
time
time is a library for time processing. For more information, see 16.3. time - Time access and conversions. It has been built in the Python code mode and can be referenced directly.
Currently, the Python code mode supports the following library functions/types:
| No. | Library Function/Type | Description |
|---|---|---|
| 1 | altzone | Returns the offset of the local DST time zone from UTC in seconds. |
| 2 | asctime | Converts a struct_time object into a time string. |
| 3 | ctime | Converts a timestamp into a time string. |
| 4 | mktime() | Converts a struct_time object into a timestamp. |
| 5 | strftime() | Formats a struct_time object. |
| 6 | strptime() | Parses an event string in the specified format and returns a structured struct_time object. |
| 7 | timezone | Returns the current time zone. |
| 8 | tzname | Returns the name of the current time zone. |
| 9 | time() | Returns the current time. |
| 10 | localtime | Converts a timestamp into the local time of the local time zone and returns a struct_time object. |
json
json is a library for JSON data processing. For more information, see 19.2. json - JSON encoder and decoder. It has been built in the Python code mode and can be referenced directly.
Currently, the Python code mode supports the following json functions:
| No. | json Function |
Description |
|---|---|---|
| 1 | dumps() | Encodes a Python object into a JSON string. |
| 2 | loads() | Parses a JSON string into a Python object. |
math
math is a library for arithmetic operations. For more information, see 9.2. math - Mathematical functions. It has been built in the Python code mode and can be referenced directly.
Currently, the Python code mode supports the following math functions:
| No. | math Function |
Description |
|---|---|---|
| 1 | math.ceil(x) | Returns the ceiling of x, i.e., the smallest integer greater than or equal to x. If x is not a floating-point number, delegates to x.ceil(), which should return an integer value. |
| 2 | math.floor(x) | Returns the floor of x, i.e., the largest integer less than or equal to x. If x is not a floating-point number, delegates to x.floor(), which should return an integer value. |
| 3 | math.fabs(x) | Returns the absolute value of x. |
| 4 | math.pow(x,y) | Returns x raised to the power y. |
| 5 | math.sqrt(x) | Returns the square root of x. |
The following constants are supported:
| No. | Constant | Description |
|---|---|---|
| 1 | math.pi | Mathematical constant π = 3.141592..., to available precision. |
| 2 | math.e | Mathematical constant e = 2.718281..., to available precision. |
| 3 | Floating-point positive infinity (for negative infinity, use -math.inf), which is equivalent to the output of float('inf'). |
|
| 4 | math.nan | Floating-point "not a number" (NaN) value, which is equivalent to the output of float('nan'). |
base64
base64 is a library for Base64 encoding/decoding. For more information, see 19.6. base64 - Base16, Base32, Base64, Base85 Data Encodings. It has been built in the Python code mode and can be referenced directly. The following functions are supported:
| No. | Supported Function | Description |
|---|---|---|
| 1 | base64.b64encode(s) | Encodes the bytes-like object s using Base64 and returns the encoded bytes. |
| 2 | base64.b64decode(s) | Decodes the Base64 encoded bytes-like object or string s and returns the decoded bytes. |
hmac
hmac is a library for HMAC encoding/decoding. For more information, see 15.2. hmac - Keyed-Hashing for Message Authentication. It has been built in the Python code mode and can be referenced directly. The following functions are supported:
| No. | Supported Function | Description |
|---|---|---|
| 1 | hmac.new(key) | Return a new hmac object. key is a bytes or bytearray object giving the secret key. |
random
random is a library for random number generation. For more information, see 9.6. random - Generate pseudo-random numbers. It has been built in the Python code mode and can be referenced directly. The following functions are supported:
| No. | Supported Function | Description |
|---|---|---|
| 1 | random.randint(a,b) | Returns a random integer N such that a <= N <= b. |
hashlib
hashlib is a library for hash value generation. For more information, see 15.1. hashlib - Secure hashes and message digests. It has been built in the Python code mode and can be referenced directly. The following functions/attributes are supported:
| No. | Supported Function/Attribute | Description |
|---|---|---|
| 1 | hashlib.sha256() | Creates a SHA-256 hash object. |
| 2 | hashlib.md5() | Creates an MD5 hash object. |
| 3 | hashlib.sha1() | Creates a SHA-1 hash object. |
datetime
datetime is a library for time and date processing. For more information, see 8.1. datetime - Basic date and time types. It has been built in the Python code mode and can be referenced directly. The following functions/attributes are supported:
| No. | Supported Function/Attribute | Description |
|---|---|---|
| 1 | datetime.date | Idealized naive date, assuming the current Gregorian calendar always was, and always will be, in effect. Valid attributes: year, month, day. |
| 2 | datetime.time | Idealized time, independent of any particular day, assuming that every day has exactly 24 * 60 * 60 seconds. Valid attributes: hour, minute, second, microsecond, tzinfo. |
| 3 | datetime.datetime | Combination of a date and a time. Valid attributes: year, month, day, hour, minute, second, microsecond, tzinfo. |
| 4 | datetime.timedelta | Duration expressing the difference between two date, time, or datetime objects to microsecond resolution. |
| 5 | datetime.timezone | Offset from UTC. |
| 6 | datetime.tzinfo | Time zone information objects. These are used by the datetime and time classes to provide a customizable notion of time adjustment (for example, to account for time zone and/or DST). |
decimal
decimal is a library for floating-point number processing. For more information, see 9.4. decimal - Decimal fixed point and floating point arithmetic. It has been built in the Python code mode and can be referenced directly. The following functions/attributes are supported:
| No. | Supported Function/Attribute | Description |
|---|---|---|
| 1 | decimal.Decimal | Constructs a decimal floating-point object. |
socket
socket is the underlying implementation of TCP sockets in Python. For more information, see 18.1. socket - Low-level networking interface. It has been built in the Python code mode and can be referenced directly. The following functions/attributes are supported:
| No. | Supported Function/Attribute | Description |
|---|---|---|
| 1 | socket.htonl() | Converts 32-bit positive integers from host to network byte order. |
| 2 | socket.ntohl() | Converts 32-bit positive integers from network to host byte order. |
pycryptodome
pycryptodome is a dedicated third-party encryption tool library. For more information, see Welcome to PyCryptodome's documentation. It has been built in the Python code mode and can be referenced directly. The following functions/attributes are supported:
| No. | Supported Function/Attribute | Description |
|---|---|---|
| 1 | Crypto.Util.Padding | Provides minimal support for adding and removing standard padding from data. This module provides the pad() and unpad() methods. |
| 2 | Crypto.Cipher.AES | Implements AES encryption. This module has a fixed data block size of 16 bytes. Its keys can be 128, 192, or 256 bits long. It provides the new() method. |
struct
struct is a library for binary file packing. For more information, see 7.1. struct - Interpret bytes as packed binary data. It has been built in the Python code mode and can be referenced directly. The following functions/attributes are supported:
| No. | Supported Function/Attribute | Description |
|---|---|---|
| 1 | struct.pack(format, v1, v2, ...) | Returns a bytes object containing the values v1, v2, ... packed according to the format string format. The arguments must match the values required by the format exactly. |
| 2 | struct.unpack(format, buffer) | Unpacks from the buffer buffer according to the format string format and returns a tuple. |
urllib
urllib is a library for URL processing. For more information, see 21.5. urllib - URL handling modules. It has been built in the Python code mode and can be referenced directly. The following functions/attributes are supported:
| No. | Supported Function/Attribute | Description |
|---|---|---|
| 1 | urllib.parse.urlparse() | Gets URL parameters and parses the URL into a tuple of six strings: protocol, location, path, parameters, query, and fragment identifier. |
| 2 | urllib.parse.unquote() | Decodes the encoded URL. |
csv
csv is a library for CSV file read/write. For more information, see 14.1. csv - CSV File Reading and Writing. It has been built in the Python code mode and can be referenced directly. The following functions/attributes are supported:
| No. | Supported Function/Attribute | Description |
|---|---|---|
| 1 | csv.reader() | Creates a reader object, which will traverse over lines in a CSV file object. |
Yes
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