string (byte or unicode; if unicode the utf-8 encoding will be used) body_producer – Callable used for lazy/asynchronous request bodies. It is called with one argument, a write function, and should return a html#module-logging] module. For example, you may wish to send tornado.access logs to a separate file for analysis. class tornado.log.LogFormatter(fmt: str = '%(color)s[%(levelname)1.1s % (asctime)s %(module)s unicode the utf-8 encoding will be used) :arg body_producer: Callable used for lazy/asynchronous request bodies. It is called with one argument, a ``write`` function, and

[https://docs.python.org/3.6/library/collections.abc.html#collections.abc.Callab ]) – Callable used for lazy/asynchronous request bodies. It i called with one argument, a write function, and should return a html#module-logging] module. For example, you may wish to send tornado.access logs to a separate file for analysis. class tornado.log.LogFormatter(fmt: str = '%(color)s[%(levelname)1.1s % (asctime)s %(module)s `str` or `bytes` :arg collections.abc.Callable body_producer: Callable used for lazy/asynchronous request bodies. It is called with one argument, a ``write`` function, and

org/3/library/collections.abc.html#collections.abc.Callable Callable used for lazy/asynchronous request bodies It is– Callable used for lazy/asynchronous request bodies. It is called with one argument, a write html#module-logging] module. For example, you may wish to send tornado.access logs to a separate file for analysis. class tornado.log.LogFormatter(fmt: str [https://docs.python.org/3/library/stdtypes.html#str]

string (byte or unicode; if unicode the utf-8 encoding will be used) body_producer – Callable used for lazy/asynchronous request bodies. It is called with one argument, a write function, and should return a html#module-logging] module. For example, you may wish to send tornado.access logs to a separate file for analysis. class tornado.log.LogFormatter(fmt='%(color)s[%(levelname)1.1s %(asctime)s %(module)s:%(lineno)d]%(end_color)s

unicode the utf-8 encoding will be used) • body_producer (collections.abc.Callable) – Callable used for lazy/asynchronous request bodies. It is called with one argument, a write function, and should return a library’s logging module. For example, you may wish to send tornado.access logs to a separate file for analysis. class tornado.log.LogFormatter(fmt: str = ’%(color)s[%(levelname)1.1s %(asctime)s %(mod- ule)

(byte or unicode; if unicode the utf-8 encoding will be used) • body_producer – Callable used for lazy/asynchronous request bodies. It is called with one argument, a write function, and should return a library’s logging module. For example, you may wish to send tornado.access logs to a separate file for analysis. class tornado.log.LogFormatter(fmt=’%(color)s[%(levelname)1.1s %(asctime)s %(mod- ule)s:%(lineno)d]%(end_color)s

(byte or unicode; if unicode the utf-8 encoding will be used) • body_producer – Callable used for lazy/asynchronous request bodies. It is called with one argument, a write function, and should return a library’s logging module. For example, you may wish to send tornado.access logs to a separate file for analysis. 142 Chapter 5. Documentation Tornado Documentation, Release 5.1.1 class tornado.log.LogForm

(byte or unicode; if unicode the utf-8 encoding will be used) • body_producer – Callable used for lazy/asynchronous request bodies. It is called with one argument, a write function, and should return a library’s logging module. For example, you may wish to send tornado.access logs to a separate file for analysis. class tornado.log.LogFormatter(fmt: str = '%(color)s[%(levelname)1.1s %(asctime)s %(mod- ule)

unicode the utf-8 encoding will be used) • body_producer (collections.abc.Callable) – Callable used for lazy/asynchronous request bodies. It is called with one argument, a write function, and should return a library’s logging module. For example, you may wish to send tornado.access logs to a separate file for analysis. class tornado.log.LogFormatter(fmt: str = '%(color)s[%(levelname)1.1s %(asctime)s %(module)s:

unicode the utf-8 encoding will be used) • body_producer (collections.abc.Callable) – Callable used for lazy/asynchronous request bodies. It is called with one argument, a write function, and should return a library’s logging module. For example, you may wish to send tornado.access logs to a separate file for analysis. class tornado.log.LogFormatter(fmt: str = '%(color)s[%(levelname)1.1s %(asctime)s %(module)s: