zos-util

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This module provides a Python interface into various z/OS utilities

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# zos-util
This module provides a Python interface into various z/OS utilities

# API
### zos_util.chtag(filepath, ccsid=819, set_txtflag=True)
- changes information in a file tag. A file tag is composed of a numeric coded character set identifier (ccsid) and a text flag (set_txtflag) codeset.
- set_txtflag = True indicates that the file has uniformly encoded text data.
- set_txtflag = False indicates that the file has non-uniformly encoded text data.

### zos_util.untag(filepath)
- removes any tagging information that is associated with the file and sets the status of the file to untagged.

### zos_util.get_tag_info(filepath)
- returns a tuple of file tagging information (ccsid, set_txtflag) associated with the file.

### zos_util.tag_binary(filepath)
- changes the file tag to binary mode to indicate that the file contains only binary (non-uniformly encoded) data.

### zos_util.tag_text(filepath)
- changes the file tag to text mode, which indicates that the specified file contains pure text (uniformly encoded) data.
- The existing ccsid that is associated with the file is retained.

### zos_util.tag_mixed(filepath)
- changes the file tag to mixed mode, which indicates that the file contains mixed text and binary data.
- The existing ccsid that is associated with the file is retained.

### zos_util.enable_apf(filepath)
- sets APF-authorized attribute on an executable program file (load module). It behaves as if the file is loaded from an APF-authorized library and raises PermissionError exception when the operation fails.

### zos_util.disable_apf(filepath)
- unsets APF-authorized attribute on an executable program file. It behaves the same as removing the file from an APF-authorized library and raises PermissionError exception when the operation fails.

# Example
    import zos_util
    import tempfile
    f = tempfile.NamedTemporaryFile()
    # To specify a file with IBM-1047 code set
    fpath = f.name
    zos_util.chtag(fpath, 1047)
     
    # To specify a file with ISO8859-1 code set
    zos_util.chtag(fpath)
    tag_info = zos_util.get_tag_info(fpath)
    print(f"CCSID:{tag_info[0]}, TXT_FLAG:{tag_info[1]}")
     
    # set to tag_mixed mode
    zos_util.tag_mixed(fpath)
    tag_info = zos_util.get_tag_info(fpath)
    print(f"CCSID:{tag_info[0]}, TXT_FLAG:{tag_info[1]}")
     
    # remove the tag from the file
    zos_util.untag(fpath)
    tag_info = zos_util.get_tag_info(fpath)
    print(f"CCSID:{tag_info[0]}, TXT_FLAG:{tag_info[1]}")

# Build Instruction  
  `python3 ./setup install`

# Test Instruction  
  `cd test`  
  `python3 ./tag_test.py`

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