simple add file to exist issue in redmine

gistfile1.txt

import requests

import json

url = 'http://jachym-redmine.samsung.majklk.cz'
auth = {'key':'008e507cf5bffac1f5df822d8cb3465170813b09'}

#filename relative path
#issue=issue_id = String !!
#item {"name":"test.jpeg", "description":"","content-Type":"image/png"path:"/srv/jachym/bin/"}
#project_id = String!!
def add_file(item, issue_id, project_id, notes=None):
    if item != None and issue_id != None and project_id != None:
        try:
            files = {'file': open("%s%s"% (item.get("path", None), item.get("name", None)))}
        except Exception, e:
            print e
        else:
            headers = {"Content-Type": "application/octet-stream" }
            file_upload = requests.post("%s%s"% (url, "/uploads.json"), files=files, params=auth, headers=headers)

            print "File upload status: %s"% file_upload.status_code

            upload = file_upload.json()

            if upload != None:
                upload["upload"]["filename"] = item.get("name",None)
                upload["upload"]["description"] = item.get("description",None)
                upload["upload"]["content-Type"] = item.get("content-Type",None)
                headers_json = {'content-type': 'application/json'}
                if file_upload.status_code == 201:
                    if issue_id.isdigit() and project_id.isdigit():
                        if notes == None:
                            issue = {"issue": {"project_id":project_id,"id":issue_id, "uploads": upload}}
                        else: 
                            issue = {"issue": {"project_id":project_id,"id":issue_id, "uploads": upload, "notes":notes}}
                        update_url = "%s%s%s%s"% (url, "/issues/",issue_id,".json")
                        issue_post = requests.put(update_url, data=json.dumps(issue), params=auth, headers=headers_json)
                    else: print "missing issue id"
                    
                    if issue_post.status_code == 200:
                        print "issue UPDATE OK"
                    else:
                        issue_post.status_code
                else: print "file upload crash"
        #finally: print "Goodbye"


add_file({"name":"test.txt", "description":"test","content-Type":"text/plan", "path": "/srv/jachym/bin/"},"2","1")